Thanks guys! The plans had been running through my head all winter.
Couldn't wait for some nice weather to get it done. They are not perfect, but will be highly functional.
I used an angle grinder for the cutting, and a flux-core wire welder. Nothing fancy.
Do the wingnuts apply clamping action to the bowl ?
I have a Weber condiment holder that gave me the idea for the "hooks" for the bowl.
I used some scrap sheet metal that I had laying around. The wingnuts allow for some adjustment from a 22" to an 18".