Forget the shark-tooth necklaces that were trendy a couple of years ago. The only teeth in vogue these days are elongated incisors.

Vampires are the motif du jour, thanks to "Twilight," the hit book and movie series. Also HBO TV's gory drama "True Blood," BBC America's humorous "Being Human" and The CW's upcoming (and endlessly-promoted) "Vampire Diaries."

Not surprisingly, sharp white teeth are replacing skulls as one of this fall's creepier images, including on boys' T-shirts ($7.99) in the new Shaun White 4 Target collection by the famed skateboarder.

The collection debuts this week in stores and online at target.com.