Any unique filaments work on Makerbot?

I'm talking about ceramics or wood filaments. Has anyone got anything besides nylon, pla or abs to work on a replicator? I'm very curious, as I really need to be able to print in a variety of materials, and don't know if a replicator would be my solution or not.

I have heard of the woodfill stuff working pretty well. There are also nylons that have worked well in replicators. It really depends on the brand. Even Ninjaflex and filaflex can work (although some people have reported a few issues).