The problem with those coin drop charities is they are too low tech, and offer no recognition beyond the nod of the cashier. I propose that these things be fitted out with a digital camera and a high scores list. Scores would be the amount of money dropped, displayed on a little screen. Next to the high score list would be an image of the player snapped by the camera - probably a face, or whatever he or she held up to the camera. I mean a cartoon picture or something! Come on! This is charity!

Now the charity coin drop would commemorate the heroes of the day, as well as those passing billionaires who smiled upon the lowly change taker.

The coin drop could have some other aspects to make it more interesting, although that is really a different idea. For example, a hyperbolic coin funnel with obstacle pegs along the way. Or instead of obstacle pegs, obstacle ramps! A heavy coin (think pound) might be able to catch air off of one of these and keep going - double score! How far does your coin get? A pachinko type machine running on coins, not balls. OK, ok, you get the picture.