What type of quantities are we talking about?
If they're low: Look into having a hand held punch made or a simple etching setup
If they're high: Have the part punched... I know of a small shop in South Georgia that would be willing to help you out. I'm sure you could get a completed (all features) part off every few seconds.
There are other solutions you may wish to consider like this one: http://www.propen.com/usa/index.htm