Thanks all,     For the jelly, I went with a "fake it" approach (nothing physics based). The bounding polygon corners are smoothened using a bezier curve and animations are rendered by moving the control point of the quadratic curves based on a timer that is reset when a cut occurs.      Originally I wanted to achieve something similar to these cute pudding monsters from Zeptolab but had to revise my goals very quickly... maybe in version 2 ill try harder