Painting Plastic with Acrylic Paint?

I have a clear hard plastic iphone case and I wanted to paint my own design on it. I know that acrylic paint doesn't really stick to plasitc and that it kinda peels off but would the paint stick better if I spray painted the plastic first then painted over with acrylic? And is there something that I could spray on when it dries to prevent the paint from scratching off?

Put on stickers instead
find some printable sticker paper

  • Will putting stickers on my iphone 5 damage it or peel off the paint? I was looking at iphone skins and they are so expensive. So i was considering printing my own skin with sticker paper, and then putting it on my iphone. Would this damage the phone?
  • Will acrylic paint stick to a shiny iphone case? It is some sort of shiny case (not plasticy but not metal either) I have no idea what it is but it's a bit shiny, so I sanded it. Will the coat of paint I'm putting on it stay? Even after sanding it was still shiny.
  • What type of paint would adhere to glossy surface on plastic? I'm trying to paint my own iphone case It is a glossed plastic hard case Any tips on how to paint it and make it stay on/not chip? And what type of paint will adhere?
  • What should I draw/paint to sell? I sell my art as prints, iPhone and iPad cases and skins, and cards on society6.com and I was wondering what I should draw that people will want to buy. I want to do something clever and/or current. I love Disney, and I'm not very good at drawing people. What would you buy?