Westjet Airlines put an interactive Santa in their terminal, then fulfilled gift requests at the baggage claim at the end of the flight! (Full article in The Huffington Post)
Also, an outtakes reel. I particularly like Santa's response when, at 1:55, a woman requests a pair of warm socks.
I'm also delighted to be involved in redditgifts' 2013 Secret Santa gift exchange, making a stranger's day as part of a 160+ country, 110k+ Santas exchange. It's more than doubled in size since last year's, which was itself, a Guinness World Record exchange. If you get right on it, the redditgifts Holiday Cards 2013 exchange is still open for signups thru Thursday, December 12!