For a long time I always wanted one of them wooden hands for drawing complicated hand poses (especially in perspective), but found them very stiff and not terribly realistic. So a friend and I made a simple hand reference app for mobile devicees called HANDY, for the times you don't have a mirror for proper reference. It comes with a bunch of different poses with which you can:
- rotate the hand
- switch between right handed and left handed
- adjust the lighting
- adjust the field of view
Give it a spin if you're interested. The free promo has ended but we'll probably do it again soon!