It's pretty easy to paint them, I've done it in the past with rattle can spray paint from Walmart lol. Just make sure and take all the electronics out first, don't try to tape off/cover the ports. Its not worth it to take the chance of messing something up. You can sand it down if you want, the paint will stick better as its plastic but its not a necessity if you clean it good enough first. Just use real thin even passes and it'll turn out pretty decent. Here's the one from DC Junkyard that made me paint mine in the first place.