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xkcd #2852: Parameterball
(imgs.xkcd.com)
Alt text:
The ball's density also varies, but players don't learn the value until after choosing their raquets. The infamous 'bowling ball table tennis' region of the parameter space often leads to equipment damage.
All you need is a series of rackets, balls, nets, tables of various sizes, and a giant court that you can paint onto and you can do it was any rng generator.