I've painted a spandex suit before, my recommendations is to not use any old fabric paint. This was two years ago, but now that I have more knowledge about costuming this is what I would do different;
When I painted my suit I thought any fabric paint would work as long as I was wearing the suit while I painted. I forget what paint I used but i know that I sqeezed it out from a bottle and used a paintbrush to slap it on.
:| don't do that.
I find that Airbrush fabric paint works a lot better, and it doesn't harden as much so you still have flexibility to the suit. I'd get a friend to help you paint yourself, or you could make a DTD (which is a lot of work albeit)
WORKING ON: 2-Star Goku Uniform Mako; Kill la Kill, Princess Agitha; Legend of Zelda: TP
HISTORY: Maka Albarn; Soul Eater, Anarchy Stocking; P&SwG, Imp Midna; LoZ Twilight Princess, Megpoid Gumi; Vocaloid, Medli; Legend of Zelda Wind Waker, Asuna Yuuki; Sword Art Online
Originally Posted by sam vimes
Kōhai. Her name is now Kōhai.