| Δ0 | enamelware camping mugs themselves | enamelware camping mug |
| Δ1 | other enamel-coated camping gear | enamelware camping plate, enamelware camping bowl, enamel coffee pot, enamel camping pan |
| Δ2 | other materials used for camping cups and mess kits | stainless steel camping mug, titanium camp cup, aluminum mess kit, plastic camp cup, wooden camp cup |
| Δ3 | general kitchen cookware and dinnerware materials | nonstick frying pan, cast iron skillet, ceramic dinner plate, glass baking dish, stoneware bowl |
| Δ4 | everyday household items with painted, glazed, or coated finishes | painted metal patio furniture, galvanized steel bucket, glazed garden pot, coated baking sheet, enameled bathtub |
| Δ5 | ordinary outdoor and household objects unrelated to cookware | wooden hiking staff, cotton camping tent, garden trowel, bicycle frame, leather hiking boots |