Nicest one I saw was made from a 20 Lb Lp tank. I think I saw it in a van featured in one of Loyd Kahn's more recent Shelter books on mobile dwellings. I'd love to have one in my cargo trailer, but the way I have it arranged there just isn't anyplace to put it with enough clearance, other than smack dab in the middle of the walkway. Maybe if I ever build version 2.0 I'll make sure I have a spot. I actually saw one in Four Wheel pop up camper with a removable stove pipe once, but it was on top of the counter and took up to much space.