I have found a source for single size multi-cavity jig head molds at Jann's Netcraft in Ohio
3350 Brairfield Blvd., Maumme OH 43537 www.jannsnetcraft.com . I am still looking for a place to find some material to make my own molds in order to make floating jigs for walleye river fishing. Does anyone know what can be used to make floating jig heads mold. I can buy them at the above named company for about 35bucks but they only have 7 to 8 cavity molds. I would like to make about 25 at a time. So making my own mold will better suit my needs. I saw some aluminite material and some other types but would like to know what others are using to case their own molds.