@Box Rocket If you want to have some cut for you get into contact with this
ebay guy out of Pennsylvania. I had a tire carrier tire mount for some studs to be pressed into and I just sent a dxf of the part over to him and it wasn't very expensive. There are other people out there that will laser out shapes for pretty cheap if you have the dxf for them and they don't have to do anything other than load it into their machine. Also if you have some dimensions of what you want to look like the rings above, I could draw that in solidworks in literally 2 minutes with whatever shape you want.