Normal
we used to make plugs out of hammer handles. one of us saw it done on some race cars out of a hardened plastic. we ran out of plastic. a guy we knew that showed us how to make wine, and get scorpions to sting eachother, told us we could make them out of wood too and he suggested hard wood like hickory and put them on the lathe in woodshop. a man who knows what he did was worth listening to. also, it helped to drink some of the wine before you played with the scorpions. they could tell if you were nervous.