If TDKR: Gotham City’s Most Wanted cost a penny, there’d be no reason to speak further of it, but this free facial-mapping iOS app (and shameless The Dark Knight Rises promtional tool) has its perks. It lets you place 3D versions of Batman’s cowl, Bane’s Hannibal Lecter mouthpiece, or Catwoman’s eye mask over your face, then share your snaps on Facebook, Twitter, through email, or posted to a public map (you can alternatively try it on a camera-equipped computer here). The mapping algorithm’s reasonably good, and “grips” your mug as you move
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