I ground the studs off the back, sanded it down, then I bought 3M 2 sided tape, and razored it to fit. voila - Camaro badge on dash. I wiped down the area with alcohol first, to be sure there was no oily residue from my vinyl protectant.
The "to punish and enslave" was given to me by a club member, I am sure any vinyl place can make it, although , Mine is reflective tape, so at night it is very visible
I got my interior trim from DSVcustoms. You may check with them to see if they still offer these, because I haven't seen any posts from them for a while. If the don't, I know RPI Designs now offers the same solid color panels and TCFS has quite a variety of styles for the trim pieces that they offer as well.