Gestures of Craft by Elke van den Hoogen is a beautiful project about the lost art of craftsmanship. This ladder lamp will make make you aware of the effort that had to be done in the past to turn on the lights.
Adults need to have fun too! Any slide for adults in a house is a great idea, but this one contains a water slide. Excellent choice of transportation and you can even get a shower on the way out of bed going down to get breakfast!