Librium may sound like a pharmaceutical formulation you might take for depression. Although Librium may prove addictive, however, it isn't a drug.
Librium is a fun balancing game where players take turns to add cards to those previously placed. Obviously, you need to avoid any of the cards tumbling off. The cards are credit card sized and each has a slot on each side which can be used to hang subsequent cards. Librium comes in several varieties. This is the version with a magnetic mount that can placed on any metal object - in this case, the cap of a beer bottle.