I had an idea for making a whole body paint job easier and more uniform:
Instead of applying paint with a brush, you would submerge it in a very watered down paint bath (like at least 2 parts water to 1 part acrylic paint) and let it dry a bit between "dips", like making a candle. I'll have to test this when I get home.
I would be very surprised if it hadn't been done before, but has tried this/seen the results? Obviously it would be a very light difference (which I need for the custom I have in mind..)