In case you needed a reminder that alcohol can be dangerous, this Doomed Crystal Skull Shot Glass by Fred and Friends should do the trick nicely.
The Doomed Crystal Skull Shot Glass is designed like a traditional double-wall shot glass, but instead the inner wall of the shot glass is designed like a skull. The inner skull holds 2.5 ounces of your favorite alcohol and "inhabits the inner skull" with your chosen beverage. The Doomed Crystal Skull Shot Glass is made from "hand blown crystal clear borosilicate glass," according to the site, and will complement any drinks nicely, alcoholic or otherwise.
Some ancient tribal cultures have been known to drink out of the skulls of their enemies. Unfortunately, we're forced to live in a civilized polite society, making the Doome Crystal Skull Shot Glass the next best thing.