Cups and glasses are fine, but there are times when you need something more robust to drink from. Something you won’t break when you’re in the great outdoors, being literally bowled over by the majesty of the natural world. (It can happen.)
Turns out the Finns have the solution: hand-carved birch drinking cups called kuksa. Truly a beverage container to befit an adventurer. For the detailed, according-to-Hoyle instructions on how to make one, head to this video. For instructions on making something perhaps a little less authentic, but almost as impressive, head to this Instructable.