Here are a few rat theatres that have sent in their manifestos and/or missions. Send in your stab at history, or as Erik suggests here to all rats:
"Write Your Own Damn Manifesto!"
Salvage Vanguard Theater
Thieves Theatre
The Unbearables
The Harlequins
Funkopolis
Acme Clown
rm 120 theatre
Theater In My Basement
Fly By Night