Earlier this week I pointed to Jeff Highsmith's awesome Mission Control desk, which allows his son to command make-believe space missions. But this isn't the first cool project Highsmith has done to engage his kids' imaginations. In the video below, Highsmith shows how he made a semi-automated system to deliver teeth to the Tooth Fairy's Treehouse, via pneumatic tubes he installed in the walls of the family house (!). Starting about two minutes in, Highsmith's son tests the system. It's adorable:
If you want to make your own, here's an overview of the project courtesy of MAKE.