One of the few fishing shows worth watching is Larry Dahlberg's Hunt for Big Fish. Every now and then, he will do a "Larry's Workshop" show where he makes his own lures. He makes both hard baits and soft plastics. Here's a video on how to make a killer dragon fly larva:


YouTube - Copy a Dragonfly Larva


Other similar videos and all necessary tools/materials can be found here:

Mold and Cast Fishing Lures - How To's