The “Zombie” series is just for fun but this background turned out to be one of my favorites.
Sticker: Zombie Slime background with Biohazard symbol
Stickers measure 8.8 x 2.4 inches. (Note that the opaque stickers are smaller than the corresponding magnets, due to different intended purposes.) They are printed on Oracal 4 mil adhesive vinyl and are waterproof and UV-protected.