I too am into ThunderCats and TMNT. Certainly both the classic and the modern edition (didn't watch much of the 2003 edition, mind you) as well as the live TMNT series.
I am also into Road Rovers, Biker Mice, Thomas the Tank Engine, Moo Mesa, various Warner Bros. & Disney cartoon series, some shows that I came across on VHS, DVD or YouTube and some of the classic cartoon shows from the 80s by DiC.
If you wish to check out my gallery, you'll see what I'm into.
I would certainly like to see your Genderbender work on some of these characters...