Place painted foam board in the back of the bookcase, giving the look of a painted bookshelf w/out the commitment. Love this idea for a small book shelf next to couch. Good way to use yellow without committing to it in a big space.
Ikea Prant Box as storage. Adore this. You can paint and add lovely wallpaper to the inside. (I probably liked this just because of the elephant ;) Great idea for a wall mounted Barbie house in kids play room