If you've been geeking longer than most, you might be an Ancient Geek. This funny shirt uses the slogan in a stone-look font that might be taken to say "Ancient Greek" on first glance. This is a funny t-shirt gift idea for anyone who is part of a geek fandom or has a geeky job or lifestyle.

Shown on a unisex dark t-shirt in deep forest green, this text design can be purchased on a variety of other dark garment choices for adults and kids. Use Zazzle's tools to transfer the design to a different garment option, or another type of gift altogether. See some fun options below.

Buy / More Details

Celebrate the holidays in true geek style with this design inspired by science and interpreted as an ugly knit sweater. 

In simple shades of white and green, repeating design elements come together to emulate a typical ugly Christmas sweater with science lab flair. 

Printed science-inspired elements in the design include microscopes, Erlenmeyer flasks, and strands of DNA.

Printed holiday season elements in the design include a Christmas tree, snowflakes, a string of lights, and snowmen.

Shown here on a unisex long sleeve shirt in black, you can get this fun holiday science geek design on a variety of other apparel and gift options; use Zazzle's easy tools to pick your favorite gift idea! Look for "Transfer design to a product" on the product page to get started.

Buy / More Details

This funny comic style shirt is based on the famous thought experiment by physicist Erwin Schrödinger. The theory of quantum mechanics revolves around the timing of quantum superposition and reality, and the example used in the thought experiment includes a cat, a box, and a flask of poison.

This Schrödinger's Cat shirt depicts the conundrum in a simplistic illustration, showing what a viewer would never actually see: a cat both dead and alive at the same moment inside the box. The image is accompanied by text around the box that reads "Wanted Dead & Alive" with "Schrödinger's Cat" written on a ribbon below. 

Shown here in Royal Blue, this nerdy graphic t-shirt is also available in White, Red, Olive, or Lemon. Get this in unisex, women's, or youth cuts.

Buy / More Details

Check out this funny and cute cartoon cat astronaut t-shirt for kids!

This unique graphic design is perfect for both cat lovers and space enthusaists. The design uses silly cat-related puns for its funny space themed message.

A cute cartoon kitty wearing a space or astronaut helmet is captioned by an adorable pun-filled slogan: Purrready for Meowterspace (meaning Ready for Outer Space). The puntastic text uses all caps in a stylized font. This cute space cat design is perfect for cat lovers, space enthusiasts, and wanna-be astronauts. This shirt for kids is perfect for school days, learning about space or other science facts. Wear it for museum visits, homeschooling lessons, and space launches!

Buy / More Details

Dress up as an entire celestial body disguised as a human being with this simple geeky Halloween costume t-shirt,

This Is My Human Costume I'm Really Pluto has a funny caption referring to the unceremonious removal of Pluto from our list of planets: You Can Still Call Me A Planet.

A stylized cartoonish version of the planet / planetoid / celestial body is featured as a backdrop to the text design. 

Shown here on a unisex white shirt, this easy Halloween costume tee for astronomy fans can also be purchased in different shades of space grey and on cuts for kids or women.

Buy / More Details

Show your interest and spread the word about the JWST James Webb Space Telescope, already on track to explore the universe and deliver knowledge about our past, present, and future.

This retro space geek design uses a honeycomb shape to represent the mirrors used to capture and create the amazing images from the telescope. This is a retro style design with a classic color scheme and some distressing throughout for a vintage look. Large letters JWST feature above a sunset style stripe pattern, with smaller text below reading James Webb Space Telescope in all capital letters.

This is a perfect gift idea for anyone interested in space exploration and the new information that will be revealed by this amazing new telescope, including astronomers and amateur astronomers, space fans, and other scientists and science geeks.

Buy / More Details