‘Tis the season for customization, and Burberry and MyTheresa are capitalizing on the moment. On December 6, the etailer will partner with Burberry on a monogram service, giving customizers the ability to personalize the color-block leather and the Haymarket check card case with their initials in colors like pink/multicolor, eucalyptus green/multicolor, black/multicolor, claret, gunmetal, navy, emerald, and gold. The cardholders can also be accented with up to three letters, including a heart symbol and an ampersand. They will retail for $190, but are only available for a limited time. Consider yourselves warned!