These were done very much like Bill described, I may have used an abrasive wheel in my rotary tool to cut the slot for the lip. The lip in the articulated minnow results in a wider wiggle. I did not drill holes in the lips but it would be a good idea, you could do it with a hot 4 penny nail if you don't want to buy a tip cleaner.
Jointed balsa minnow.jpgSmall balsa minnow.jpg