I just ordered a bunch of these to give out and use myself - http://www.looktwicesavealifebumperstickers.com/

Sometimes you can get 'em free from lawyers or vendors at events but I'd rather not have an ad on the bottom of mine for a lawyer -

 

send one to tesla.

"Neither Autopilot nor the driver noticed the white side of the tractor trailer against a brightly lit sky, so the brake was not applied," Tesla said in a blog post entitled "A Tragic Loss."

see https://www.washingtonpost.com/news/...-on-autopilot/