I painted my tooties black first, then did white dots, and applied 6 different neons over the white dots as randomly as I could so they wouldn't look really patterned. Here's the result:
Not bad, huh? I freehanded the dots. I didn't use any sort of tool. Maybe it would have come out neater if I did. But I still like it!
Check out how awesome neon colors look under a UV light: Neons are creeping up as new fave for me!