Screw painting and sponging and all those Martha Stewart techniques for your walls. I'm all about the wall stickers as a quick, easy, and simple way to make kid decor that much better. My child loves these TokiDoki Heart and Crossbones ones ($56) in nice pinks, greens, and blues. The kit comes with 144 stickers: that's a good amount of adhesive entertainment, pirate-love style.