More to explore:
‘Rinser’ Toothbrush (Say goodbye to sticking your head under the faucet once you’ve got your hands on this new toothbrush. A genius design turns your toothbrush into a water fountain to make rinsing easy.) http://goo.gl/D2hRD
A toothbrush that is a waterfountain! Genius!
The Rinser Toothbrush from Amron A nifty idea, and interesting design but... I just cup my hands to catch the water instead of using a cup.