A potion of great strength, it is a finely brewed tea that restores Constitution, as well as gives the drinker an unusual burst of Strength, due to the high levels of caffine. Tastes great chilled and with a drop of honey and lemon.
Other improvisational weapons/tools:
Icicles are useful as daggers,
Bag Of Holding filled with copper pieces used by chucking the contents at foes, (by strolen)
sleeves make useful garrotes. Ya can't cut anyone's neck, but you sure can choke 'em!
Flaming Logs make great clubs, (any Barbarians out there?)
and Bee hives are very effective when thrown at a mob of enemies. :-)