I have been thinking of something like this for a long time now, and finally spotted this. The Rinser Brush ($22) is an ingenious toothbrush that sports a built-in scoop which funnels water to a small hole on the top, creating an instant fountain for rinsing out your mouth. Features include a button to control the fountain, a no-nonsense design, and GreenerStep Snap replacement heads to ensure that the brush stays useful way after its first bristles are shot.
