I'll have to play with the mold after I get one. I like the idea of being able to change the hook; thus a split ring. The lead head should be good forever (may have to repaint it from time to time) but hooks tend to get dull or break,etc. after some time and I would hate to have to throw the whole think away. But it would also be easy to just make up a new batch! Sorry for my ramblings.