got one of these;
folds flat about the size of A4 paper, works good but needs a strong plastic bag to stop contaminating everything with grease and soot after you use it. only a few £s, more fun than a disposable BBQ, can burn wood, charcoal, or petrol soaked soil/sand (desert rats eat your hearts out) and campsites have been fine with it so far because its off the ground and the feet even stay cool enough for table tops.
its ultra thin mild steel, when it falls apart im going to copy it in 20swg stainless or titanium, but so far its hanging on in there with no sign of collapse. a real bargain.
EDIT; sorry, i should have resized the pics before posting, now it wont let me