If You Can't Get into W+K, You Can At Least Get on the Window.

London-based? Swing by 16 Hanbury St. and walk by the offices of Wieden + Kennedy, where a giant Christmas card is fusing the faces of passersby to various holiday characters. Stand there long enough, and you might see your own face appear on Santa, an elf, or some kind of creepy egg-shaped bird.

This Dickensian silent film illustrates how it works. And to see a rolling montage of unwitting Englishmen that've stopped by W+K's windows lately, visit the Christmas Card Making Machine website. (Oh yeah, you can make Christmas cards there too.)

Festive and unique. Better than the third iteration of Office Max's Elf Yourself? That disco thing they did this year is a bit of a scale-tipper.