Cutting fur

I'm looking for some sort of knife/tool to cut fur. I learned the first time fur can't be cut with scissors like other fabrics. I've heard of the X-acto knives, but do they cut fabric well? If I could be linked to a specific one that would be great!

on another note I've seen people cutting foam with what seems to be an electric knife, where could I find one of those?

thanks for any help!