I mash in a 10G Blichman Pot that my wife bought me for last Christmas. While it is pretty cool and nifty to mash in this, the temperature is very wavey compared to a ice chest. I decided to wrap it in insolation and duck tape, and it worked fine, but it looked like crap. I was thinking of a few nanos and micros and what they use around there mash tuns and lots use wood to stop or slow the lose of heat, so I decided to go this route and strap it to my tun. For the record I have NO ban saw, miter box, circular saw, or any good wood working tools to mention. I used a hack saw, drill, sand paper, tompsons water seal, and some oil base paint. Been working on it for the past couple weeks between work and chasing my 2 yr old son who was always wanting to "help".
before sanding and sealing...

with the fleur de lis...

around sight glass...

haven't finished, will put a few wood screws into the the metal straps which is just what plumbers use to hold up pipes. and fix a few other details.
...And YES is I will be puting fire to it, but with water flowing in at 160ish or so I never thottle the gas on the tun to keep from scalding the bottom.