Who was this rocking a Santa Claus mask with paper banana leaves stuck in his beard at Gucci’s New York flagship last night? None other than Vanity Fair fashion director and illustrator Michael Roberts, signing copies of his new children’s book, Snowman in Africa, to support Gucci Campaign to Benefit UNICEF. The book, a sequel to his beloved Snowman in Paradise, is on sale exclusively in Gucci stores and on Gucci.com through the end of the year, with 100% of the $25 price going directly to UNICEF.