
I'll throw out a couple:
An animal/insect/whatever from a triangle. There are not (to my knowledge) all that many things folded from triangles, and it might be a neat idea to explore.
A hummingbird moth. I saw these when I was in Italy and I looked up some pictures of them. They are apparently any of several moths in the family of Sphinx Moths. Here is a pretty good site about them with some good pictures (The one I saw was a Hummingbird Clearwing Moth).