They're spending too much money! Just go down to a carnival surplus store and buy some of those clowns where you spray 'em in the mouth with a water gun and a balloon on their head inflates. Reposition them appropriate in the urinal, and you get the same entertainment value.
This assumes, I suppose, that you don't mind peeing into a clown's mouth... hmm, maybe I should take this back to the drawing boards for a little.