Great way to display and organize your collection of kids toys - the ideas of collections you could use are endless. Cars, stuffed animals, artwork etc! IKEA ribba picture ledge - good for lego minifigs?
Instead of a boring ole square, paint a chalkboard into a fun shape. Maybe Molly would like a butterfly instead of a stegosaurus. Also, paint an actual chalkboard and hang it as opposed to painting on the actual wall.