Hi, Krista!
You and my daughter would be best friends. She has "blinged out" so many of our
MagicBands with everything: paint, markers, stickers, glued on jewels, and of course, nail polish! I have gotten so many compliments on my faux "diamond" MagicBand, truly my favorite!
Even with all the bling, my MagicBands always work fine. I certainly would not alter it with scissors or mess with the inner-workings, but as long as you just decorate the exterior, you should be just fine.
Enjoy your beautiful MagicBand. If you see a crazy family with wild looking MagicBands, say "HI" - it will probably be me with my tribe!
See You Real Soon!
Cathy