Around our office, coconut rum is just as important as coffee. Which is why we're excited to incorporate our favorite spirit into a traditional holiday drink like eggnog. Our friends at Tommy Bahama put an island twist on this classic to create the Coconut Eggnog Martini — and we thoroughly approve. It's perfect for sipping on while picking out private islands for your Christmas list (what? That's just us?) or dreaming of sand instead of snow. Here's how to make it.