Check out this guys Kickstarter for a practical effects TMNT fan film
http://www.kickstarter.com/projects/1947003844/teenage-mutant-ninja-tu rtles-blood-brothers
I am in no way connected to this project. I just think it looks way cool and would love to see it get off the ground! I am going to back it with some $$ and I urge others who can, to do the same.