After dismissing requests and pleas to stop wearing fur and using it in their fashion collection, bone-thin twins Mary-Kate and Ashley Olsen are about to get some publicity that will have them running away faster than if they’d spotted a calorie.

PETA2, the world’s largest youth animal rights organization, plans to launch its “Trollsen Twins” campaign by unveiling an ad featuring images of fur fiends Mary-Kate and Ashley in the most unflattering photo that PETA2 could find. (Admittedly, not a huge feat.) The ad, which carries the tagline “Fur Is Worn by Beautiful Animals and Ugly People,” will be unveiled today at noon at the Olsens’ Walk of Fame star on Hollywood Boulevard.

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It features a ‘Fatal Fashion’ animated dress-up game complete with animal skins and the accompanying blood; a mash-up video called ‘Full House of Horrors,’ in which footage from the twins’ former TV show Full House is interspersed with scenes in which animals are killed for fur; and information about actions visitors can take to get through to the ethically challenged 21-year-olds, whose hearts are apparently as nutrition-starved as the rest of their bodies.

Says peta2 Assistant Director of Youth Campaigns Dan Shannon: “No one would argue that Mary-Kate and Ashley could use some meat on their bones, but the last thing they need is hair on their backs–especially when it belongs to someone else. These two are a couple of real lightweights when it comes to both taste and compassion.”