I am doing a SW landscape quilt and I've looked and looked for fabric with a rattlesnake on it, both in LQS and on line. Couldn't find a turtle, either, but was able to make a sufficient one.... but a side-winder or any kind of a rattlesnake is beyond me.
Several months ago I responded to someone who needed a wolf and it made me feel great to be able to help. Made me think that maybe someone out their might have an extra snake around and would like to send it to me. It has to be realistic and between about 1" to 3" (not length but overall size).