JPatch is an amazing 3D Modeling/Animation tool designed to model and animate "organic" shapes such as humans, animals, aliens, etc. It is a bezier-spline modeler and works with so-called "Coon's patches", the same patches that are used by the popular Windows freeware modellers sPatch and Hamapatch and the commercial program Animation Master (they are called Hash patches there). JPatch is written entirely in Java.