The overlapping ends are tapered to maintain the proportions of diameter to width then the rough shape is warmed in a stovetop water bath. The softened plastic is then placed on an oval mold and allowed to cool.
This view shows the overlap.
The rough-cut is then sanded to remove the cutting tool marks then buffed with a motorized wheel. The cotton buffing prices heats the surface of the plastic just enough to fuse the surface creating the smooth semi-polished texture.
7 3/8" (187 mm) circumference
2 1/2" (63 mm) x 2 1/4" (58 mm) oval diameter
A similar design can be seen here.
More of these are available on the ArtFact Site shop
design and photographs copyright 2017