make a cardboard template, transfer it to 1/8" aluminum, cut it out, hit it with a 3-m pad. have a pepsi.
We make all kinds of block off or flat caps for just about all 5 ear caps, let me know if you can't find what you are looking for. We offer a lot of different combinations to achieve what your looking for. Dashman's Hot Rod & Speed Parts www.dashman.net
I Have the program set up in the cnc mill, how many do you need? you could have them today and no shipping. 1-310-768-3163