Man those are tight. I love handmade things here in the U.S.A. I absolutely love the idea and with all the different ways to customize, I don’t see how these wouldn’t fly off the shelves. I don’t see how Duncan could say anything. Just don’t call them counter-weights and what could they do? They could stop you from making blown glass with a hole through the middle of it? I would definitely buy one or more. I think if you dropped the price, even though $12 a piece isn’t bad, to like $6 a piece, they would absolutely kill. Good luck man!