How to make a balsa crankbait with rattles

Another take on making balsa crank baits, well worth a watch

Pippa and Els Go Fishing

I remember doing this when my middle son was a baby.

IV Lures, making soft plastics (Fabricando señuelos de pesca)

I think this is slide show from Mexico of putting together a master and making a mould from it of a split, belly, jointed shad type lure, if that makes sense.