You could also skin your way out of it: make a spiral-spline or wat ever shape you like to use. If you make a procedural one i am sure u can animate the opening of the peel. then make some bones in the right shape (spiral) and use the spline as an ik spline with the animation. finaly skin your mesh. you can make your mesh by using the draw-split tool that can be downloaded here somewhere! I know i missed a few details but I hope u get the idea!
Mads 
tuxen@radarfilm.com