Fidget Spinner - The infamous fidget spinner is now a web app!
Word Square - Sudoku, but with letters and words.
iPhone Case + Fidget Spinner - iPhone cases with a detachable fidget spinner
SudoKoi - Your next favorite pastime, like Sudoku
glamspin by Buzzfeed - Fidget spinner, meet lip gloss
UsDoku - Play real-time multiplayer Sudoku.