SFEHangman lets you set up simple online Hangman games. You can allow additional users to set up their own wordlists to play from, or just keep it restricted to admin. Experimental support is there for the accented characters of French, Spanish, Italian, Portuguese, German, Norwegian, and Swedish, as well as, of course, English. Each game can be played as "easy" (10 guesses, and it will draw a face on the hangman) or "hard" (7 guesses, and the head is one guess). All in all, a fun little addition to your website.