When Alexander Marnier-Lapostolle invented Grand Marnier in the 1880s, his idea of infusing oranges into the finest cognac he could find took a little while to catch on. Today, it’s seen as a top-shelf liqueur that enhances all sorts of cocktails and is even used in many popular desserts and sauces. How about gathering your favorite drinking buddies (either live or online) and seeing who can come up with the best creation with which to celebrate?