I've asked Jurgen Baltizky, the owner and operator of tesla-lights.net, to work on development of a lighted rear appliqué for the Model 3. Jurgen is a fellow Model S owner and we teamed on the rear lighted applique for the Model S. He's now completely taken it over the business. I had a spare old Tesla OEM for the S so I jerry rigged it to roughly fit on the Model 3. Photo below. It's too wide but that can easily be fixed. Hopefully this can be developed for the 3. It's my most cherished mod on my Model S and I really want it on my 3. Also below is a video of it in operation on my Model S.