5.5 Designers want you to be able to enjoy your Hennessy on the rocks without watering down your cognac. The Hennessy Eternal Ice Drop is a clear glass chiller filled with water that’ll stay ice cold when you take it out of your freezer. Its rounded teardrop shape gives it a flavor of high fashion, being as much a conversation piece as a functional element to your cognac experience. The Hennessy Eternal Ice Drop will be available in upscale liquor stores in mid 2010. [5.5 designers via designboom] View in gallery