There are actually (or were at one time) brew in a bag kits, and even some strange bag like fermenters, so it's been covered before. Someone even started a thread awhile ago about a platic bag conical...so despite you idea about a hot tub mash tun, weird fermenters have been covererd.
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Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman
I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew