Isn't this from the third Hitchhiker's book?
(
Photoshop Bitch 2014 edition,
Wed 22 May 2013, 16:00,
archived)
I think that one was the Universe-destroying cricket ball.
Or, rather, Krikkit ball.
(
jonbob loves you,
Wed 22 May 2013, 22:23,
archived)