These would make an awesome staircase to an attic. I would love to see some Harry Potter books on there. This would also be cool with movie titles on it as well. I love this staircase--- more folks should do stuff like this.
I want to do this for my kids to make reading exciting - for every stair, we'll read the book. Staircase to Knowledge by sungazing: Stairway to the reading room at The Magic House, St. Louis Children's Museum in Kirkwood, MO
I like this idea for a garden or an indoor decor. You could paint just about anything on the rocks (faces, fish, etc.) and let the kids help. Or even names - say a gift for Grandma with a grandkids' name on each rock.