I'm about to modify one of mine to use #2 in a 1/32 barbed head mold. I'm not going to try the dremel thing like I did the other day. It worked OK but it could have gone bad real fast. I'm going to use a Dremel bit in a drill press and take tiny bites with the depth of cut preset. I think that should help with the wandering a dremel usually has. I'm looking for drill bits that are numbered or in .001 increments, probably have to pay through the nose for em, but I don't need many. Custom molds are the way to go, but I can't justify the $ for no more than I do.
Creativity is just intelligence fooling around