Thought I would share a couple photos of a grill I put together for a recent trip. I used stainless steel woven wire mesh from amazon and a couple of 1/8" x 18" aluminum rods I got from McMaster Carr. The aluminum rods sagged a bit in the heat with some sausage on them. The grill definitely wouldn't hold a pot of water. I'm thinking Ti bicycle spokes may be stiffer or Ti rod. To build, I cut the wire mesh to 12" x 6" and bent over the ends of each wire and then threaded the Al rods through the mesh at each end and in the middle. It all comes apart for packing. I strapped the rods to the side of my pack and put the mesh in a tyvek mailer (to keep the grease and soot off the pack). Total weight: 3 oz.
Here's the pics:





