Maker Coins

Two maker coin designs. Both share the similar design - five concentric rings that are free to rotate on pivot points. The "maker coin 2" comes in two versions, "2w" has slightly wider gaps between rings so is easier to separate. The second design, "maker coin 4", has an additional pattern embossed on top (again, "4w" has wider gaps).

The surface finish shown in the photos comes from the slicer (Slic3r): the recessed surface is gyroid infill with no top layer, and the raised surface is the t