"Experimenting with the weenie balls" is the name of a long thread dealing with this type of toy.
We made several patterns using the tentacles and one proved very successful for bluegill and bass (see picture of my father-in-laws bass today).
Thread base on the hook shank and super glue is absolutely the way to go. The fly in this shot has a tentacle tail and crystal chenile (motor oil/purple) body.
JW bass.jpg