I'm only linking this because OHBALLS used the Krylon paint.
http://ball-pythons.net/forums/showt...tic-quot-Hides
"1 - paint (I used "Krylon Make It Stone!" textured paint but you can use whatever you like)"
You could try using primer on the plastic then paint or possibly buy the primer/paint in one. I know lowe's and possibly home depot sells these paints. Walmart is a definite possibility.