I need one black button plug

I thought I had a few of these but I haven’t been able to find them.

Need one that is standard american button hole sized.

This is a thing that looks exactly like a pushbutton except it’s one piece and flat on top.

If someone has an extra one laying around and can pop it in the mail quickly, I’d appreciate it.

You can buy them at http://www.focusattack.com/ and http://www.paradisearcadeshop.com/