What is a Car Rear Window Campaign? MyBump Media March 05, 2019 10:03 Follow A Car Rear Window Campaign is one of the ways you can earn with MyBump Media. Endorse a brand/campaign by placing a campaign sticker on the rear window of your car. Here's an example by one of our awesome brand ambassadors for a JPJ campaign: Related articles Can I choose the brand I want to endorse on my car? I want a Car Rear Window Campaign, what should I do? How much can I earn for bumping a Car Wrap campaign? How do I get my sticker? What happens if I remove the sticker during the Car Rear Window Campaign? Comments 0 comments Please sign in to leave a comment.