I'll tell you what I currently do
I use Boiled linseed oil and paint thinner in a roughly 50/50 mixture.
I dip one end of the plug and then stick a wire in it and dip the other end.
I hang it and let it drip.
I sometimes wipe them off a few hours later, (THROW THE RAG AWAY AFTER YOU DO THIS) if I don't I just use a scotchbrite pad on them later to get the gummy part off.
I wait a week, very patiently. (If it's something that you want to know if it works, wire it up and go test it)
I prime with grey rattle can primer
I paint with rattle cans, start with white and black
I paint some yellow but they get painted white first.
I give some a squirt of red under the chin.
Epoxy is a pain in the butt, so I spray with clear rattlecan stuff.
For your first plugs I would'nt bother with Epoxy. They hold up pretty well without it and it's a pain in the butt(You may enjoy the pox, I don't)
Now there are no guarantees in my method but,
I do guarantee you that if you talk to all the guys on here you will not find the Holy Grail of Plugbuilding, unless they have been holding out on me
