Wojtek is dead right Harrison. On 1/48th scale and larger, the lead foil from the necks of wine bottles is ideal, if you can still find some. Most bottles now use a plastic material, but the lead foil can be bought, at a price, from model suppliers. I use the alloy foil from the packages my pain killers come in, which is a common material on many foil packed products. It's thicker than kitchen foil and, as Wojtek mentioned, will cut, shape and bend and conform easily. You can see some of the belts I've made in the various threads. It's only the arthritis which prevents me from making better examples - someone with normal dexterity shouldn't have a problem, it just needs a little patience. Various thicknesses of paper can also be used, but with the foil, this can also be used to make the buckles, fastening lugs etc.