mbFeatherTools is a plugin for Autodesk Softimage which allows for the styling, animation and simulation of bird feathers. While the plugins main use is for feathers, it can also be used for Leafs on a tree, spines of a hedgehog or clammy fur, etc. This seems to be an efficient solution for creating feathers quickly, however as a note, mbFeatherTools is not a physically accurate simulator, and does not support feather deformations. It is written for the multi-threaded ICE platform, showing dramatic performance gains on multi-core machines.