EUREKA! Tighten up those loose joints!
I have discovered a way to tighten up those pesky loose joints. i have been using some of those older Marvel Super hero Showdown figures for customs lately and they have those ball and socket joints at the shoulders and hips (at the top of the legs) which are always terribly loose. I popped off the legs and arms and painted up the inside of the socket with "Plasti- Dip". Let it dry for 4 hours or so and pop them back on and VOILA! Perfect, tight joint. Now I realize that Joes don't have these types of joints, but you could use it to tighten just about any loose joint (accept knees and elbows, I guess unless you could take them apart so you could apply the Plasti Dip inside). At the very least a thin coat will create a rubbery surface that creates enough friction to keep the joint tight, but you could also build up coats to make a joint that's too loose a little snug. Anyway. I'm pretty excited, so I thought I'd share. "Plasti Dip" is really smelly and is available in the tool section of every hardware store. You dip the handles of your tools in this stuff (wrenches, pliers, etc) in order to create a rubbery grip. Or to tighten the joints on your figures.