Someone asked me to try and copy a Luhr Jenson speed trap, and here's my version, along with an original in a redish craw for comparison.
I've included a schematic (at least, my version of a schematic) and I built mine out of Azek PVC trim. They swim really well, even when burned back on a fast retrieve.
I built one out of the med weight balsa that Rayburn Ben gave me, and it's so lively I had to increase the belly hanger weight to 3.7 grams, with not rattles. I'm going to try and make a balsa bait with rattles tomorrow.