RTX Aspen Rim Center Cap

So I took my car in to get my winter tires put on, they are on RTX Aspen Rims which have a center piece held in place by a allan head screw. Well between the Tire shop and home one of them came off and vanished into the great highway beyond thanks to it not being tightened down enough. These caps are hard to come by and when you can find them they are expensive. So I sat down and designed a replacement using one of the 3 remaining. It is not a perfect fit but it is very close. It is unbranded t