Still missing a Christmas present for someone special? How about getting them wired with Caffeinated Hot Cocoa Mix. On sale at Think Geek for $4.99, this hot chocolate will keep you warm and awake for the holidays. Tell someone you care by giving them 175 mg of caffeine in every 8 oz serving. This mix comes in three flavors: French Vanilla, Pumpkin Spice and Double-Dutch Chocolate.