If you buy this shirt, you might consider taking a piccie for "the buyers booth":http://www.redbubble.com/buyers_booth and showing the world how awesome you truly are!
h3. Don't forget your towel
Your towel - Just about the most massively useful thing any interstellar Hitchhiker can carry. Partly it has great practical value. You can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the beady sea vapours; wet it for use in hand-to-hand combat; wrap it round your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal (a mind-bogglingly stupid animal, it assumes that if you can't see it, it can't see you — daft as a brush, but very very ravenous); you can wave your towel in emergencies as a distress signal, and of course you can dry yourself off with it if it still seems to be clean enough.
"source - The Hitchhikers guide to the galaxy of course!":http://hitchhikers.wikia.com/wiki/Towel