A little while ago there was a great documentary on tv called 'Cuttlefish - Kings of Camouflage'.
One of the cuttlefish featured in the documentary was a Broadclub Cuttlefish which has the remarkable ability to bamboozle its prey with a crazy strobing stripe pattern. Truly bizzare stuff.
If you want to see a real one in action here's a link I found to a clip from the documentary.
Cuttlefish are so cool.