As a biology student who already has lots of bones and skulls in my collection of interesting natural things, I have thought about having my chameleon's skeleton cleaned and mounted in a really beautiful way. Maybe on a branch screwed into a pretty base with a name plaque. But I don't know if I would do it with my own pets... it seems more inappropriate? Not sure. I'd have to be in the position of one of my boys dying to say or sure.
But stuffed? na. They would never look as good. You're better off cremating them, and then having a little statue of them made and painted to put on the box of ashes.