[du-] Dumbledore is in the [4] bathroom of the [-an] pawn shop, 鍛 forging a 金 metal zipper. He gets a piece of scrap 金 metal and places it on the bathroom floor, then uses his magic to summon a 殳 missile which explodes onto the 金 metal, forming a zipper. This is an ancient form of 鍛 forging passed down through the years.