Phyzios Studio Pro has replaced OE Cake, and it improves on Cake’s classic, physics-based, program. Phyzios Studio Pro enables you to handle highly complicated physics simulation, and it’s available for free at http://www.phyzios-studio.net/. The registration/download/installation/activation, can be a bit tricky, so here’s a video to take you through all the steps involved (for PC). The instruction for downloading on a MAC can be found here.
Now that you’ve got Phyzios Studio Pro, here’s a short video showing how it works and how a program called “Nailit” can lend a hand.