The challenge was

Create a t-shirt design inspired by the Teenage Mutant Ninja Turtles.

Get ready . . . it’s pizza time! We’re teaming up with the most bodacious Turtles around, Leonardo, Michelangelo, Donatello, and Raphael, for a challenge that will have you saying “Cowabunga, dudes!”

Use the Teenage Mutant Ninja Turtles to create a t-shirt design with Turtle Power.

Break out your nunchakus and katanas (though colored pencils and crayons might be more effective) and pay tribute to these heroes in a half-shell. Take inspiration from their rat sensei Splinter, their armored archenemy Shredder, or any other friends or foes of these totally tubular Turtles for your radical design.

Keep in Mind:

Use your original artwork.

No adult references (sex, drugs, alcohol, excessive violence, profanity, gambling, etc.) allowed.

Make sure to read the legal stuff. Rules for this challenge are different from other Threadless challenges.