Constant Crewneck Sweatshirts

Everything Aristotle said was wrong. So f*&k him! And listen to The Constant

You are an official Constantine!

Constant Vigilance

If anything goes wrong, Demond Hume will be my constant

This merch was discovered on the bottom of The Chicago River.

Just for all those Stephen King fans

Welcome, Constant Reader, to the shirt you've been waiting for.

I Threw A Boomerang A Few Years Ago. Now I Live In Constant Fear.

"See ya in anotha life, brotha !" Design by DoubleDu.

Soren Kierkegaard - Constant Despair

Constant Affirmation

Constant Deprogramming from the song Geneveieve. Available on all platforms

Animal needs constant supervision!!!!! Can you guess why?

If Hubble were being more dramatic about his theory he might have said something like this.

The Siren Eyes with the title

Pi is My Constant. Pi Day happens on March 14th. However, for the math geek, math nerd, math teacher, etc. Pi Mode is Always on and this Pi Day will be Epic! Pi Day Rules.

You could save the world.

Mathematical constant.

Mathematical constant.

Just one of those fun moments that made O Brother such an enjoyable movie. "hey mister., there's a man in there who will pay you ten dollars to sing into his tin can."

It's not much, but it's honest work.

The perfect puntastic gift for the Genius in your life. Pi is the ratio between a circle’s circumference and its diameter. Perfect cute funny humor humour gift idea for teachers,students,tutors,school,college,friend,men,women,girls,boys, stem,science,technology,mathematics,maths,physics enthusiasts.

The perfect puntastic gift for the Genius in your life. Pi is the ratio between a circle’s circumference and its diameter. Perfect cute funny humor humour gift idea for teachers,students,tutors,school,college,friend,men,women,girls,boys, stem,science,technology,mathematics,maths,physics enthusiasts.

piday

change is constant

If anything goes wrong, Demond Hume will be my constant

This is how the value of the constant number e, or Euler's number, is found.

Retro simple monster graphic

This shirt design has been steeped in ol' timey material. Heck, it's silly with it. Don't get caught in a tight spot down at the five and dime without one.

Get this new print for a limited time!

To see more of my designs click the blue Barn Shirt USA link above.

From our early seasons! Vintage Constant! Meow!

Black with grey 3D

When the ship is going down, but you look fly.

A glitched, stylised design depicting Planck's Constant.