kid bedtime water cups

anyone with children knows that the little buggars always seem extra thirsty when it's time to go to bed. any any wise parent knows to resist the big ole cup of water so close to bedtime to avoid a bed-wetting experience. at his house the solution is medicine cups. each kid is allowed a cup of water after brushing teeth and those medicine cups are constantly cluttering up the cabinets so it seemed a natural solution. i even painted a stripe of color on the bottom of each to differentiate between the kids' cups. (painted with nail polish). they work great!~ except that my uptight self just can't handle the clutter on the bathroom sink counter top. sooooo . . . . since annoyance is often the root of ingenuity i found a solution: magnets!! had some spare magnet discs laying around (magnetic discs with sticky foam backing~ can be found at any craft store and in bulk for fairly cheap~). a magnet on the bottom of each cup and then some on the UNDERSIDE of the medicine cabinet~ voila!!! cups are up off the counter top. AND~ you can barely see them!