Hide your beer in a soft drink cup, and put ice on the bottom.
Get a handle for your beer.
For your fancier events, get a tie flask.
Use tube socks to keep your bottles safe during transport.
Make vodka-soaked oranges by cutting a hole in an orange and inserting a bottle of vodka. Cut it into slices to serve at parties!
Make holes in mason jars and use it as an instant strainer.
Open a bottle of beer with a Macbook charger.