I now have 21 free bumper sticker designs on my website. I just finished adding a bunch and updating the old ones a bit. They’re all designed to promote responsible driving by encouraging people not to use their cell phones while driving. This is an issue I feel very strongly about. No conversation is worth someone’s life.
They’re sized for printing as bumper stickers at VistaPrint, but you can use them however you like. They’re free for personal use. Enjoy.
Karen B. Jones - Illustrator 
great post, thanks for sharing