The Brush & Rinse toothbrush, designed by Scott Amron, redirects water from a faucet to your lips for easy rinsing. The back of the head is shaped to direct water "into a fluid parabola as perfect as the St. Louis Arch." They cost $3, or you can get 1 of 27 original working prototypes for a paltry $1,750. I had a college professor a few years back that really could have used one of these. The whole brushing thing was just too much of a hassle for her. Maybe this would have made it easier. She'd get up in your face if you asked a question and nearly knock you out with her breath. It was always like she'd just finished eating a bag of shit.