Cliff Vickrey's Site
(as seen on Quibi!)
Video poker that analyses player luck and efficiency, in addition to displaying the probabilities of winning hands for all 2,598,960 possible initial draws (if you're in the mood to cheat!)
The Moyers-Biggs Personality Test
Quite possibly the most useless psychological questionnaire ever devised.
Dogs Playing Poker
Displays over six quintillion variations of the Dogs Playing Poker painting, that venerable jewel of American fine art.
Simple way to generate and visualize Markov text chains, which power the most annoying bots on Twitter and the rest of the web.
House District App
Visualizes changes to U.S. House Congressional districts going back to the 1940s.