Lunchtime shoppers, beware: if you’re toting your purchases in a plastic bag in one of twelve cities tomorrow, you might encounter a Bag Monster.

From your worst shopping-related nightmares the “you can’t make this stuff up” file comes a creation of cosmetics company Lush to support the ban of plastic bags and to raise awareness of their wastefulness. “Each bag monster, which resembles a walking, talking trash heap, is made of 350 plastic bags — the amount of bags an average family of four will use in just four months,” announces the press release.

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In addition to scaring unsuspecting plastic bag hags, more benign protesters will distribute educational material. Lush will also provide interested shoppers with a free, reusable tote. “Tote bags can be sturdy, stylish, and last longer than most relationships,” observed Lush North America CEO Mark Wolverton in an April press release.

Seattle didn’t make the cut, but be on the lookout for the Bag Monster if you’re a mall-crawler in NYC, LA, Carmel, Pasadena, Aspen, Boulder, Chicago, New Orleans, Boston, Portland, Philadelphia, or Washington, D.C.

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