The Wild Walls series is a simple concept that kids dig. Peel-and-stick decals featuring a variety of licensed characters (and some "generic" animals and scenes), each affixed to a wall and illuminated from below by a small, battery-powered unit that offers a combination of lights & sound or light-only. See how it looks in Finn's room in the Instagram video below...
The light can spread up to 20 square feet, and for kids it is some simple fun. My wife points out that "it's not a relaxing night-light," and both of us concede that Uncle Milton's Wall Friends line (reviewed here) is a much better buy. Still, if you have a little CARS fan at home, this one might be a welcome addition to the bedroom decor.
Uncle Milton has a ton of really cool and unique children's toys and lighting accents, and later this summer - Disney's FROZEN enters the mix. Check out http://unclemilton.com/ to learn more.