I can't speak for everyone, but I'd like to see a briar burl handle. I see flawed pieces on ebay frequently, no good for making tobacco pipes, and they can be got cheaply. It's nice, hard stuff, I've heard that it can be carved quite nicely if it's soaked in a vinegar/water mix for a bit beforehand. You can find some really interesting grain structure, with a mix of curly, birds eye, and flame grains in one piece.