Ok, I made some templates for Rat-l-traps in autocad fo I could print them and shape them onthe sander. It worked out rather well for making a rough blank, instead of just eyeballing everything.
I went by the store and picked up some thumb tacks from something I saw year last year for using them as a caps for a hole drilled. The are small! Large ebough to cover a hole for a BB, bt I was looking for somethign else, maybe larger. I was thinking of a larger rattle chamber. They are about 11/32" across and could cover a 1/4" hole with a 3/8" forstner bit recess chamfer.
What are you guys doing or using? If you use these tacks, what about the pin? I am assuming I need to cut the pin off as I did and peen the head on the anvil to flatten out the cut of the pin off. Striper season is around the corner and I need a few of these. They whent nuts last year for the rattling jerk baits.