Well, I rather didn't think I liked this idea, but after seeing some photos, making a purse out of a bra might be a fun idea after all!
tutorial with photos at Wrights
Another tutorial with photos is shared among several sites, looks like it originated at Craftbits.com;
So, perhaps not for me would I make a bra into a purse, but it might be a fun thing to make for a couple of teen grandchildren. No? Perhaps then pre-teen grandchildren?