Only a few more days left for our extended Halloween Sale!

The fun ends on Halloween night... so be sure to pick up your science t-shirts in time!

Halloween Sale in all Shops!

All shops, all science t-shirts, all with a Halloween sale!


Special bonus sale in our EU shop: take 20% off any long sleeved shirt, including 'create your own', with code DRESSUPWARM!

September Sale on science t-shirts in both shops!

Great discounts off our entire science t-shirt and hieroglyphics t-shirt selections! Custom shirts are included as well. Don't delay!

First Autumn Sale of the Season!

Special sales for a limited time in both shops, below! Get that perfect science t-shirt at a reduced price:

In our USA Science T-Shirt Shop:
Also, a special US bonus sale: use coupon OKTOBERSALE08 for 15% off $25+ !


In our EU Science T-Shirt Shop:

"Back to School" Science T-Shirt sale: part 2!

Due to popular demand, we're going to extend our back to school promos! Now is the time to pick up some new science t-shirts at great savings... Whether you want a chemical structure t-shirt, a physics or math t-shirt, or just a funny general science shirt, we have it all... and if we don't have it, we'll make it custom! Stop by and check it out, now for a limited time only.

Go "Back to School" in a great new science t-shirt!

It's back to school time, and whether you're fresh for a new semester, teaching, or just enjoying being out of school forever, now is the time to pick up some new science t-shirts at great savings! Whether you want a chemical structure t-shirt, a physics or math t-shirt, or just a funny general science shirt, we have it all... and if we don't have it, we'll make it custom!


Check out our savings in our Science T-Shirts USA shop:


and in our Science T-Shirts EU shop as well:

July Sale on science t-shirts in both shops!

Now for a limited time, special coupons in both the US and EU shops, valid on all our science t-shirts as well as custom work!


Also, please note that the demand for Digital Direct printing has been large enough that we are temporarily running at a backlog of 10-14 days. We do apologize for this, any orders affected will be notified by email at the time of ordering, and please email us if you have any questions or concerns.

Special bonus summer sale!

Special bonus summer sale on all our science t-shirts and every product, all shops!

Special June Sale on Science T-Shirts!

Special June sale in both our USA and EU shops on all our science t-shirts and egyptian hieroglyphics t-shirts! Over 500 to choose from, or have us make you a one-of-a-kind custom shirt!

Give Science for Father's Day!

Father's Day is coming up - why not surprise a Dad who loves science with a fun science t-shirt! We have special discounts in both our USA and EU shops for the upcoming holiday, valid for both our standard selection and custom work as well. Give Science for Father's Day!

Special USA shops sale! This week only.

Special sale in our US shops! Buy any 2 or more items and take 25% off. Hurry while it lasts, because the sale ends May 27th!

Mother's Day Sale in USA and EU shops!

Mother's Day is on it's way... give something special to your mom, girlfriend, or your favorite female scientist!

Science T-Shirts USA sale:

Science T-Shirts EU sale:

Special weekend-only sale in USA shops: free shipping!

We have a special sale, this weekend only, for free shipping in both our Science T-Shirts USA shop as well as our Egyptian Hieroglyphics USA shop. Any order of $15+ gets you free domestic US shipping (UPS Ground), or $5 off international shipping.


As an added bonus, we also have all our Feynman diagram physics t-shirts on sale as well! Only $16.99 for this weekend:

In the Egyptian shop we have our "Eternal Life" design, with special front and back printing, also on sale:

Stop by and check it out! New shirts are also added regularly.

Celebrate Earth Day with eco-friendly organic science t-shirts!

This month, in honor of Earth Day, we'll be having special sales in both our USA and EU shops. Stop by and look around by clicking on the banners below! Our featured products are all eco-friendly organic t-shirts, and we can also make a custom version of any of our standard t-shirts for you as well. We have many unique designs in science, chemistry, physics, math, astronomy, medicine, and more, and one of the best selections anywhere with over 500 products to choose from.

USA shop:

EU shop:

Special limited time spring sale on science t-shirts!

We have a special Spring Sale for a limited time in both shops - stop by and check out all our t-shirts with science, chemistry, math, and physics designs, along with lots more!

Last chance for St. Patrick's Day USA promo!

Stop by and get a science-themed St. Patrick's Day t-shirt for only $17 ! This week is your last chance to pick one up on sale...

St. Patty's Day deadlines for USA shops

There's still time to get in our St. Patty's Day science t-shirt sales, and to get your t-shirt in time as well. Just a reminder about USA shipping deadlines:

St. Patrick's Day Sale on science t-shirts until Feb 29th

Happy St. Patrick's Day 2008! We'll be 'putting on the green' for this special holiday, with coupons and limited edition designs. Add a little science to your St. Patrick's Day with our science t-shirts!

Stop by for our special offers in both shops until February 29th:

Win a free YellowIbis.com theobromine t-shirt at the ChocolateBytes.com contest!

This month, YellowIbis.com Science T-Shirts USA and the Chocolatebytes.com chocolate blog are running a special Valentine's Day contest where you can win a free special-edition theobromine t-shirt (the "chocolate" molecule) as the prize. You can also see our wide range of science-themed Valentine's Day gifts here.

Click on the image to see the full contest details!

Science t-shirts to get you in the mood

Our first promo for the Valentine season is a discount on many of our most popular designs, as well as a bonus $5 off coupon to anyone who sends us a customer photo wearing our stuff! Stop by the shops to learn the details:

Happy New Year 2008, and Sales!

Happy New Year 2008! Stop by for our special sales in both shops until January 14th:

Happy Holidays from YellowIbis.com, and a note about holiday hours

We'd like to wish a joyous holiday season and a Happy New Year 2008 to everyone, and a big thank you to all our wonderful customers who have supported us this year!

Just a short note about holiday hours, we'll have customer support by email throughout the holidays, but actual t-shirt production will be paused from Sunday through Tuesday for Christmas (USA and EU). This means that any orders placed before Wednesday will not go into production until Wednesday / Thursday.

Wishing you all a peaceful and prosperous New Year!

- Happy Holidays from YellowIbis.com -

Last Chance Sale! USA and EU Shops

Only 17 days till Xmas... time is running out!

December flies so quickly... and we are already at 17 days left until Christmas! A big thank you to everyone so far who has bought their gifts through us this year - and don't worry, there's still time to get your favorite science t-shirts or a custom order.

A reminder about our shipping deadlines this year:

--- USA store ---
International / Canada: Dec 12th
USA ground: Dec 17th
USA 3-day: Dec 18th ($)
USA express: Dec 20th ($$)

--- EU store ---
EU region: Dec 16th


And don't forget there is still time for a little discount... in the USA shop, coupon SPREADSHIRT03 for $5 off will end very, very soon. And in the EU shop, XAVIMGQF will get you 3 Euro off for a little while longer. Act soon to get a discount and your gifts sent on time!

Winter Sale in the USA shop - Nov 27

We have a few last days of savings for both our USA Science T-Shirts shop and our Egyptian T-Shirts shop... the holidays are fast approaching.



Meanwhile our free shipping promo continues in the EU Science T-Shirts shop, with code XMAS07 for orders 20 Euro +. Limited time only!

Join us today for Cyber Monday! - Nov 26

You might have heard of "Black Friday" for regular retailers... well, online retailers have our own version on the following Monday, called "Cyber Monday".

"Cyber Monday" is Nov 26th - and we'll be featuring some very special deals, including some $10 science t-shirts, special coupons and discounts, and of course it's also our last day for free shipping for orders $25+ (coupon HOLIDAY07).


Stop by and check us out, and take home a deal in time for the holidays!

Free Shipping in both shops! - 01 Nov 07

Hi everyone,

This November we're offering a special pre-holiday promo for you in both our USA and EU shops:
Free standard shipping!


In our USA shop, get free standard shipping with any order of $25+ with coupon HOLIDAY07. In our EU shop, get free standard shipping with any order of 20 Euro+ with coupon XMAS07.

These coupons are valid on all our Science t-shirts as well as our Egyptian t-shirts, and on custom orders as well. Pick up a t-shirt for you or a friend, or get your holiday shopping done early!

Don't forget, we're now also available on Skype at 'yellowibis' if you want to text chat real time with your questions.

Have a great November!

You can now reach us on Skype!

Hi Everyone!

During the holiday season we tend to get a lot more questions and custom requests, and so this year we're going to be on Skype as well as email.

Right now we will only have limited hours on Skype, but these will get longer and be regular once we start getting closer to the end of November. In the meantime, if you have any questions or would like to chat real-time with us, you can Skype us (text chat only right now) at user "yellowibis".

Looking forward to hearing from you!

Temporary loading problems with our website - 19 Oct 2007

Hi everyone,

As you might have noticed, parts of our site have gone a little haywire since yesterday. We were hoping for a quick solution but it looks to be a bit more involved. Right now the main problem is that our navigational links are not consistently pulling the right products.

Please be patient with us and we do apologize for the inconvenience. We're working with the administrators of the faulty server.

Thanks!!

UPDATE: With the exception of a few stray search problems, the site should load normally for you now and the checkout process should be smooth. If you are having any difficulties please let us know right away at tshirts_at_yellowibis.com and we'll sort it out for you right away. Thanks for your patience!

The Halloween Sale is here! Free shipping on all science t-shirts!

It's already time for Halloween, and with it comes our first holiday promotion:

In the USA Shop, get free shipping on any order $25+ until Oct 31st with code SPOOKY07.

In the EU Shop, get free shipping on any order 10 Euro+ until Oct 21st with code YELLOWIBIS.

We have the best selection of original science t-shirts anywhere, so come by and pick up your favorites with free shipping! Science, chemistry, math, physics, evolution... we have a huge selection of hundreds of products and we're adding new t-shirts all the time. And you're supporting domestically produced products and small business while you're at it! We also have fair trade organics now as well.

Free shipping also applies to custom orders, so email us if you'd like to have a special t-shirt made just for you. (No minimum quantities!)

Have a great October and Happy Halloween!

New t-shirts of the week in both shops: 16 Sept 07

We've added lots of new science t-shirts in the past few weeks, and there are many more coming soon! We're also adding some new areas of research and categories.

This week we're featuring a new design in both the US and EU shops as our "t-shirt of the week":


On sale in both shops, one week only! Come visit us and see all the new stuff in store.

The Scientist Gift Guide is back!

As some of you may recall, last year we ran a "gift guide" during the holidays with suggestions for books and gift ideas for both working scientists and engineers, as well as the interested public. This turned out to be quite popular so we decided to offer it again this year. We redid our site during August and our The Scientist Gift Guide is now back online! We're still adding links but there is already a lot to have a look at. Stop by and check it out!

And, don't forget, tomorrow is the last day for the free shipping promo in our USA shop (free shipping on $20+ with code SCHOOL07). Don't miss it!

New EU T-shirt of the week until Sept 15th!

We are featuring our new 'fullerene' design in the EU shop at a special price of 16,90 Euro, from now until Sept 15th.
Limited time only!

Note: USA Production closed on Labor Day

Just a reminder that our USA print shop has the day off on Labor Day, so any orders placed from Friday 31st - Monday 3rd will be shipping out as soon as everyone is back on Tuesday. Expect your weekend order to ship out Tuesday / Wednesday. Thanks for your patience!

Great new sales in both shops!

There is still time to get in on our great sales for your back to semester stuff! In the USA Shop, we have two coupon offers: And we also have a special new product, the Ethanol lightweight shirt, on sale for the very low price of $11.99.

In the EU Shop we have our benzene design as the t-shirt of the week:


We also have a similar ethanol style on offer as well. Sales end soon!

Sale continues in USA shop; new EU t-shirt of the week!

This week our coupon continues in the USA shop, $5 off your order of $10 or more with coupon THANKYOU. Time to get a new t-shirt for the new semester!

In the EU shop we have a new t-shirt of the week, our new "Musical Evolution" design. 3 Euro off, one week only!

We've also spent a lot of time re-synching our selections in the USA and EU shop so that almost all of our designs are available for both regions. Stop by and have a look at our expanded selection! Many more designs will be added in both shops in the coming weeks... Stay tuned!

YellowIbis.com has a new look!

As you've probably noticed, YellowIbis.com now features a brand new look and a consolidated site with simpler, clearer navigation. We will not only be rolling out some great new t-shirt designs in the coming weeks, but we will also be expanding our shops and services in the coming months. So check back often to see all the new and unique designs and products we'll be offering soon... and in the meantime we are extending our popular $5 coupon until the end of August, to celebrate our new website.

Thanks as always for your support of YellowIbis!
You can reach us anytime at tshirts@yellowibis.com.