Eagle that's one way of doing it. I have several fluid beds I built and much prefer doing it that way. I use a heat gun to heat up jig then dip real quick through the powder. Let cool then I clean paint from eye of jig. Then I bake them in a small toaster oven. Like young gun said if you bake with paint in eye it is really hard to get out. I use a pair of curved tip forceps and clamp them over the eye while heating and dipping. I also do a lot of pony head jigs and Jimfish turned me onto using 1/8in heat shrink over the swivel when painting then peal it off before baking to keep paint out of swivel.
Go to YouTube and look for powder painting jigs. There are several videos that will help you understand how it works. Main thing is baking. If you don't the paint will have a tendency to chip off. When baked you can't chip it with a hammer.
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Charlie Weaver USN/ENC 1965-1979