The magnetic bumper sticker prank is one that I am very fond of, it has really worked great for me and I’m sure it will work great for you as well. I highly recommend this prank because it is so effective in really getting your target. I’ve nailed many family and friends with this one, for awhile I had all the people at work walking around their cars before they got in. Now that even gets them when you’re not doing anything, and it is really funny to see people walking around their car before they get in. You get double fun for just one prank it’s great, very funny and effective. These magnetic bumper stickers are about eight inches by three inches, and there is a wide verity of selections to choose from.