Kevin had an interesting story. This was the first time I ran into him. He started making plugs because he didn't have to money to keep throwing away on plugs that he might eventually lose on the rocks.
He has always been handy with tools, and a tinkerer. So he started making plugs to fill his fishing needs, saw that they worked well, and branched out from there.
Because he's making only a few at a time as a hobby, his prices are attractive, from $7-$15 per plug.
He even sells unfinished plug kits, for a beginner to try, or a Dad to get into plug building with his son. Very reasonable, I think each kit with everything included is around $5