A little off the path, but, since this fall the Teenage Mutant Ninja Turtles come back to TV, I thought of TMNT vs Nickelodean. Can be any version of turtles, and as many as you want all 4 just one or if you want to use Splinter or any other character instead that is fine, just has to be from the TMNT universe. The Nickelodean characters can be from any show, Kung Fu Panda, Avatar or SpongeBob Square Pants, totally up to you as long as the show is on Nickelodean.
If we start today thought it could end August 13th. Gives us about 4 weeks. Let me know what you guys think and if I did this right, I searched Battle Contest and didn't see one for Turtles.