Measure every minute of happy hour with the Martini Hourglasses. This set of unconventional cocktail glasses has a small working hourglass in each stem that can run for 10 minutes at a time.
The sand in the Martini Hourglasses comes in purple, white, gray and brown. I envision these cocktail glasses being used to regulate alcohol consumption. The set of four is available at Uncommon Goods for $75.