Lots of places on the internet. You might try glasscrafters.biz, a free stained glass pattern site, or just find a picture of a lizard and have it enlarged at a Staples or somewhere. For the little individual pieces you mentioned, I would copy the whole pattern on fusible, cut the pattern apart into pieces I liked the looks of, then fuse to the background fabric leaving a 1/4" (approximately) space in between each piece. I call this exploding a pattern.