this is a quick random example. I made the center mesh x-ray to see the intersection a bit better goal is to get one connected mesh where you just have to clean up here and there a bit.
If you check around the Polycount news, there was this weird program that someone made that let you merge random meshes together. The guy who made it created a few seriously creepy examples with some human and some rabbit ears or something.... Eh, nevermind, wanted to check it out again by myself: http://www.meshmixer.com/…