The Swedish site Eletroniktidningen, currently has a funny feature, a Virtual cannon.
Visit http://etn.se/
Click in the upper left corner, on the text “D?lig rubrik? Skjut den i bitar! Klicka h?r! Skjut med mellanslag. Styr med pilar. Identifera m?l med “B” Kod: Erik Rothoff”
(Don’t like the title? Shoot it into small pieces! Click here! Fire with space bar. Direct with arrow keys. Identify available targets with “B”. Coded by Erik Rothoff.)
Have fun!
Edit: Fixed html-escaping of special Swedish characters.