Coleman Camping Dinnerware holders

I recently bought a 12 piece set of Coleman enamel coated dinnerware for my camper and wanted to make some parts to keep them in place during travel. The plan is to use 3 of these evenly around the perimeter of the plates and bowls to hold them in place when stacked. I made them slightly taller than necessary so if i buy a few more (package came with 4 of each) i wont have to remake these. Plates are listed at 10 inch and bowls are 6 inch.