http://www.pangloss.com/seidel/Ramble/
To give you some example of what it does (using "Put your hand inside the puppet head")...
Dig this Daddio:
Put your hand inside the puppet head
just sing, your Put as snow beyond, awful as foot time mow And
yet who comfortably maggot with I raging resting sun uncle, wine.
arms bout under through somewhere For as goat seen horse make fury
fires rose. were 'im your orifice that He at pieces, milky sing!
wise, of blackly harbor indecision blossoming that's of tranquility
But the batteries weren't included. This poem really sucks! Because
she was secluded.
What rhymes with laughing? Barfing or scarffing, and lo! there's giraffing!
i'm diggin it, chickie.
i like how the Cap'n & the Else got a mention. 
That was a good one!
I'm diggin' this crazy jive poetry, man
& just like most poetry, it makes zero sense to me at all. 
Kind of addictive, isn't it?