Passphrase Generator

Entropy: 57.6 bits, equivalent to a 9 characters purely random alpha-numeric password
See http://xkcd.com/936/

any crafty downtown mourned my likely move
its fluffy insect undressed some drab ant
her flowery hammer recognized the false rings
her colorful scarecrow inflated the feline stop
your handmade feather grunted his puzzling burst
the delirious creator delighted their fruitful business
its yawning plough grunted my waterlogged cushion

Entropy: 41.3 bits, equivalent to a 6 characters purely random alpha-numeric password

burstexpeledimpossiblethings
pessimistichowledhardside
sticktraveledthickcrack
enragedconfessedamusingdistribution
academicweighedautomaticsky
clockvanishedcreativevessel
powerlesscaredruralsuit