oooh actually, not sure if I could make one for other cars. I would have to work out how big it needs to be as different cars had different sized and styled badges. The XF had about 5+ different styles (that I've come across) alone.
I'm still experimenting though so give us one of your badges or an outline of the size and I'll see what I can do.
I tried contacting all sorts of places to see if anyone was interested in doing it for me, but they all said 'no'. One place told me it would cost near $800 for the one!! So I said stuff them and I did it myself. Cost me near $30 in materials + research & development :)