Judy, I just look for royalty-free cartoons. Or, if I find I cartoon I really like that's not royalty-free I'll try to draw up my own from the pic. Because the cartoons I use are so simple and free of extraneous detail, it's pretty easy to change it up. I mean, really, how difficult is it to draw a simple thimble? Or a thread spool? Pretty much a couple of curved and straight lines! Sometimes you just need the inspiration or idea!