Welcome to Gaia! ::

Hey Anlina. ^_^

I've been trying to think of something, but failed. emo

I know I've seen purses with little metal corners, but I have no clue what those things are called. If you wanted to do the whole bottom, you could use a thin piece of plastic. I'm not sure what they're called (or what they're for really), but I know I've seen sheets of thin plastic at the craft store before. Oooh! I think they're for making custom stencils, actually. Don't know how easy that's be to sew through though. Or you could use that plastic mesh kinda stuff. I think it's made for little kids to weave yarn through... That would be easy enough to hand sew in place and is fairly rigid.

http://www.craftking.com/images/plasticcanvas/MESH-AD.jpg