Wait......aren't you in Florida?It's requested and I sing it. And play my Thunderbird while singing it. The crowd dances and sings along. At my age, I'm past the point of giving a ratzass.

It's not a terribly complicated process. I did a TON of interweb searching to figure it out. Honestly, there's a company that makes paint specifically for this, rather than go down the road of mixing stuff in the paint (that method, the people who know won't share the info anyways, so good luck). So it's literally just "Buy the paint made for this, fill giant tub with water, drop some paint on surface of water using alternating colors, run a stick through it to swirl it around a bit without totally mixing it up, dip object into giant tub". I mean, that's the short answer....Totally kickazz bass! Love the swirl and color selection. I'd love to hear how you do that.
This video right here will teach you as much as you need to know to get started, it's the one I studied -