- Adult Apparel
- T-Shirts
- Tank Tops
- Hoodies
- Crewneck Sweatshirts
- Long Sleeve T-Shirts
- Baseball T-Shirts
- Kids Apparel
- Kids T-Shirts
- Kids Hoodie
- Kids Long Sleeve T-Shirt
- Onesie
- Home Goods
- Wall Art
- Notebooks
- Mugs
- Pillows
- Totes
- Tapestries
- Cases
- Phone Cases
- Laptop Cases
- Stickers

### Filter by product

- Adult Apparel
- T-Shirts
- Tank Tops
- Hoodies
- Crewneck Sweatshirts
- Long Sleeve T-Shirts
- Baseball T-Shirts
- Kids Apparel
- Kids T-Shirts
- Kids Hoodie
- Kids Long Sleeve T-Shirt
- Onesie
- Home Goods
- Wall Art
- Notebooks
- Mugs
- Pillows
- Totes
- Tapestries
- Cases & Stickers
- Phone Cases
- Laptop Cases
- Stickers
- Gifts and Merchandise

Calculus (C-Al-Cu-Lu-S) Spelled with Periodic Elements! Our original Periodic-Tees Elements design. This high-energy tee contains elements Carbon, Aluminum, Copper, Lutetium, and Sulfur!

Tags: periodic-elements, chem, spelling, biology, physics

Swooping in to save your Day, it's your friendly neighbourhood Calculator! Saviour of split bills and last-minute tax forms.

Tags: calculus, calculator, maths, cartoon, glasses

Wanna know the definition of love...and walk around with it on you.

Tags: tumblr, love

Sine (Si-Ne) Spelled with Periodic Elements! Our original Periodic-Tees Elements design. This high-energy tee contains elements Silicon and Neon!

Tags: elements, element, science, periodic-table, periodic

An amazing quote by Neil deGrasse Tyson "Einstein's biggest blunder is thinking he made a blunder. That's how smart he is. That's badass smart."

Tags: e=mc2, e = mc2, mass, energy, equivalence

Math and geometry addicts! Text says: Don't argue with a 90 degree angle - it's always right. Great holiday or birthday gift idea for math teachers and tutors.

Tags: 90, angle, funny, geometry, humor

Algebra (Al-Ge-B-Ra) Spelled with Periodic Elements! Our original Periodic-Tees Elements design. This high-energy tee contains elements Aluminum, Germanium, Boron, and Radium!

Tags: math, maths, periodic, element, elements

Algebra (Al-Ge-B-Ra) Spelled with Periodic Elements! Our original Periodic-Tees Elements design. This high-energy tee contains elements Aluminum, Germanium, Boron, and Radium!</p>

Tags: electric, chemical, organic, electrons, funny

This design features the numerals of Pi written in ripped paper style text. The heading reads Bad ∏ because the last digit is wrong. It should be a 2 (or rounded up to a 3).

Tags: maths, math, nerd, geek, funny

TRUST ME, I'M A MATHEMATICIAN - MERRY CHRISTMAS ORDER NOW if you like. Thank you

Tags: trust me, merry christmas, christmas, holidays, jobs employment

If you're one of those people who wants to express themselves into statement shirts, check this out! Best gift for your group of friends too!

Cute watercolor drawing of a geeky pink candy with eyeglasses who loves mathematics.

Tags: mathematician, love-math, mathematics, geek, nerd

Fun Pi design - great gift idea for your favorite math teacher!

Tags: calculus, pi-day, peace, mathematics, math

Cool Pi Design showing many decimal points. Great holiday or birthday gift idea for the math addict.

Tags: algebra, school, calculus, geometry, march-14

7x10" ink drawing on lined paper I drew a little bat on my Calculus notes

Tags: bats, halloween, calculus, math, bat

Science and physics humor! Great holiday or birthday gift idea for math teacher, engineer, physicist or physics professor. Text says: It's a physics thing, you wouldn't understand.

Tags: geek, algebra, calculus, education, einstein

Funny math design that says: Math teachers have lots of problems. Great back-to-school gift idea for your favorite math teacher.

Tags: math, algebra, calculation, calculus, cute

Pi rules! Show the world that you love math, algebra, calculus, geometry, trigonometry and mathematics. Great holiday or birthday gift idea for the mathematician, math student or teacher.

Tags: math, geek, algebra, because, calculus

Text says: Pi - stop being so irrational. Great Pi Day gift idea for the mathematician, math student, math tutor, math teacher or math geek

Tags: funny, trigonometry, science, school, pi-day

If we made deintegrator... would it differentiate? (As integration is kind of the inverse operation of differentiation).

Tags: teacher, student, university, calculus, integral

The graphical representation of the sextic equation known as 'Taubin's heart surface' is used to express this declaration of love to Science.

Tags: math, ecuacion, matematicas, mathematical, geek

Text says: Pi - stop being so irrational. Great Pi Day gift idea for the mathematician, math student, math tutor, math teacher or math geek

Tags: math, trigonometry, science, school, pi-day

Basically.

Tags: hydrogen, science, mathematics, accurate, hydrogen-over-time

Basically.

Tags: hydrogen, science, mathematics, accurate, hydrogen-over-time

Parody of John 3.16 shirt designs. Instead of stating John 3:16, it shows John 3.14 going on toward the rest of the numbers of Pi. Simple idea, but elegant and funny all at once. Great nerd humor design. Idea and design were created on Leap Day, 2016.

Tags: john316, john, bible, funny, pie

profesional mathematics athlete

Tags: pi-day, love, cool, cute, funny

Rad 80s hair. 1680s hair that is.

Tags: science, philosopher, physics, mathematics, astronomy

Nerdy immaturity at it's best! Bringing back memories of school. A must for any nerd or geek out there ;)

Tags: science, art, math, nerd, digital

Girls ARE good at math and it's time to let the world know that you are a math diva! A perfect gift for the math diva in your family!

Tags: science, math, geek, teaching-is-a-work-of-heart, teacher

profesional mathematics athlete

Tags: pi-day, love, cool, cute, funny