I was just goofing around with the pic with qr code.@Ludachris has already set up a way to get QR stickers for your car if you have a vehicle profile. You just go to your published vehicles and off to the right there will be an option to buy the sticker leading back to your profile. You get a fancy TMO sticker with it and the QR code says "TMO" in the center.
Here is the link for the TMO decals and QR code decals.