DMSinTexas
Knows what a fatty is.
I built a barrel extension for the Weber Jumbo Joe a few weeks ago. The idea came from Larry Watkins over at TWVB.
I used a 10 foot roll of 10 inch aluminum flashing and a rivet gun to hold everything together.
The total cost (flashing, rivets, rivet gun) was under $30. Once I figured out how to use a rivet gun the project took about ten minutes. Easy, peasy!
There isn't that much room under the dome on the Jumbo so the extra space will come in handy. I've used this once so far during some experiments baking bread and it works great.