A year or two ago I made an iron on t-shirt of the bottom right panel from this page in Issue #2.
http://ninjaturtles.com/comics/mirage/two/22.jpg
I'd just hotlink the picture, but the turtles website usually breaks them. And the link is touchy, you'll probably have to copy and paste it.
Is the first movie really rap oriented? I just remember that Tequila bit where they say Ninjitsu! instead.