This is a refinished kit Strat, with a loaded Blacktop Strat pickguard from ebay.
The swirl was achieved using umpteen gallons of water and a kilo of borax, and dribbling enamel paints on the surface to get that marbling look. There's heaps of demos on YouTube about this, but I would strongly counsel doing many many tests first. By no means is this swirl perfect, but for my purposes I was very pleased with the outcome.
Finished with 6 coats of clear polyurethane. It's not strung up as it is yet to be wiredup. I just wanted to show it off quickly!