Bead/Jewelry Making Supplies (30331)

I'm in search of bead/jewelry making supplies. My 10 year old son has recently shown interest in making beaded bracelets & wants to start a biz. We told him we’d only invest if he was serious. He's been using cheap pony beads but you can only do so much with those as far as bracelets and he's wanting to branch out. Any supplies he can practice with are appreciated! TIA