T-Shirt Brainstorms

I've been fooling around trying to come up with a t-shirt design with which to christen my new silkscreen press. I can do up to three colors, but I'd probably do well to keep it to one or two for the first run. Anybody want any of these on a shirt?

"Ninja Turtle"

"Haystack Rock" adapted from a photograph by my sister, Molly Soloway

"A pear and its arch-nemesis"

"Stuffed Monkey"