If you don't mind spending some money, Sleazy Steve sells a mandrel for turning foam poppers that works great. Essentially a block with three needles sticking out of it. One long one to hold the foam and two shorter ones on the sides to keep it from spinning.

Can't remember if he has a site or not but I'll look and post if he does.

Kevin

[This message has been edited by fly-chucker (edited 05 February 2005).]