One of my favorite molds is the Poison tail jig mold which I have also modified to use as a spinnerbait mold.
Problem is it's a pain to hold everything and close the mold.
Found a post from andrewlamberson back in 2013 that he used magnetic tape to hold the hooks.
Went one step further, drilled 1/4" holes and glued in magnets to hold things in place.
Much better now.