Creating 3D objects in processing is ridiculously easy. Building off the Bird sample code I got textured flapping wings working in under an 1hr. Using the handy OBJ Loader library by Tetsuya Saito and Matt Ditton I was able to bring in a rough body done by Keiko Furukawa without to many problems (still having some texture issues though). Now its really about getting the motion right.
I can’t seem to get an applet to work in WP so here is the link: 3D Butterflies