There are lots of official and unofficial Teenage Mutant Ninja Turtles tees on the web already but I think there is room for more.

Link: Teenage Mutant Ninja Turtles T-Shirts

Sometimes official tees can be a little boring but I feel that TMNT is a retro so it already has that factor. The great thing about Threadless designers though is their ability to give official tees an indie unofficial vibe to official tees. So hopefully we will even more awesome TMNT tees soon.

If your design is printed, you’ll get:

• $2500 cash for the grand prize
• $250 pizza party for the grand prize winner and friends (can be redeemed for a $100 Threadless credit)
• Select items from the collection of co-creator Kevin Eastman
• Poster signed by the cast of Teenage Mutant Ninja Turtles
• Teenage Mutant Ninja Turtles New Era snapback cap
• Other designs chosen for print from this challenge will receive compensation based on the product printed on & the quantity printed.

Submission deadline April 15th 2013.

Link: Threadless