Who says you're too old to trick or treat?
Baltimore ad agency Planit is inviting wannabe werewolves and warlocks -- and Mona Lisas and White Walkers -- to post their photos to an online costume contest.
It's all part of the ad agency's "Planit SHIVER" Halloween site modeled after Tinder, the popular dating app in which participants swipe right to show they find someone appealing.
To enter, share a photo of yourself at your ghoulish best via Twitter or Instagram using #PlanitSHIVER. The contestant whose photo picks up the most right swipes or "likes" will win a GoPro action camera, "365 days of bragging rights and a place on Planit's Halloween Wall of Fame," according to a news release from the agency.
Planit is also hosting a costume party of sorts near their Inner Harbor offices at 500 E. Pratt Street Friday from noon to 2 pm. Contestants can line up along Pratt Street to solicit votes from passersby. Treats and prizes will be handed out.