Ipe and bamboo would make a fine bow, but keep in mind that Ipe is a very dense and tough wood. Might be a bit tough for a first attempt and just hand tools... I'm not want to put limits on someones ability, so if you wanna do it, go for it, you can do anything you put yer mind to. I'm getting ready to do one myself, just haven't worked out the details yet, and I have two other bows I'm working on. Post pics as you go, and ask don't hesitate to ask questions.