This NASA themed t-shirt is a great gift idea for anyone who is interested in the history of space flight and NASA. The heather blue unisex jersey t-shirt has a red and black printed design that includes an American flag motif that uses the words PROJECT MERCURY in the place where you'd find the flag's stars.

Other elements in the Project Mercury t-shirt design include a black line drawing of the space capsule and the name of the first U.S. Astronaut in space, Alan B. Shepherd, Jr. Get this awesome Freedom 7 t-shirt in blue as shown or pick white where the black and red design really pops!

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Pioneer scientist Marie Curie was awarded the Nobel Prize twice, in part for her work on radioactivity and the element radium. This unique fan t-shirt design honors the work of this remarkable physicist and chemist. 

A cartoon-style portrait image of Marie Curie wears a 1990s-style baseball cap and is framed by test tubes and action lines. The design using black lines is framed by the slogan SCIENCE IS PRETTY RAD. The use of the word "RAD", which is a slang word for "radical" that means "cool" or "neat", is a play on Curie's work with radium and radioactivity.

This grey 100% cotton Marie Curie tee comes in a comfortable unisex cut and can be purchased in sizes SMALL up to 2XL.

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Get this funny t-shirt for the math or geometry geek in your life. The design features a row of 3D illustrated geometrical shapes. These are flanked by bold text above and below, in all caps: Without Geometry above and Life is Pointless below. 

While circles are also measured using math and geometry, the fun math pun in this t-shirt design works best if you only think about dodecahdrons, cubes, tetrahedrons, octahedrons, and icosahedrons. Just don't think about cylinders, cones, or spheres and this funny geometry geek t-shirt is golden.

The dark blue design looks great on a white shirt, as shown. This Geometry Geek t-shirt is available print-on-demand from Zazzle which means you can pick from many different apparel styles and colors if you'd like to see this awesome math geek t-shirt design on a different kind of tee.

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Share your love of chemistry this holiday season with this fun t-shirt that mashes up chemical themes along with a festive Christmas design. 

A stack of green blocks, each representing an actual element from the periodic table, is arranged in the shape of a Christmas Tree. Some of the blocks are different colors, like ornaments or lights.

The design is accompanied by chemical symbols and other icons related to chemistry, like flasks full of liquid. The entire design is captioned with the festive and funny slogan "OH, CHEMSITREE". This is a cute Christmas t-shirt for chemists, chemistry teachers, and those who study chemistry.

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This is a cute t-shirt for systems techs, computer experts, and tech support personnel to wear during the holiday season. Bold text reads "Tech Support" and "I'm Here To Delete Your Cookies" in all capital letters. The design text is accompanied by four yummy looking graphic gingerbread-style cookies.

This funny holiday design uses two meanings of the word "cookies" to make a fun holiday themed computer geek joke. It's a great top to wear during the holidays to spread Christmas cheer as well as solicit extra gingerbread treats. Shown here on a black unisex style shirt, you can get this fun design in a flattering cut for women, and pick festive colors like kelly green, cranberry red, and neutral dark heather grey.

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