Design for sale as prints and shirts here
http://www.redbubble.com/people/ectoimp/works/21235337-hang-in-there-rat

I should have already loaded this here (especially since I think I'll find more rat lovers here then DA >>)
I was having a rough day and my friend sent me a picture of the hang in there cat, lamenting that she couldnt find a rat version of that. So I decided to fill the void.