Aunty’s Little Helper

This wooden mug can only be filled with alcohol such as spirits, wine, or ale. Attempting to fill this mug with a non-alcoholic beverages causes the liquid to splash off of the top as if obstructed by some unseen barrier. 

When alcohol is sipped from this mug the imbiber is subject to the effects of the calm emotions spell suppressing any effect causing the imbiber to be charmed or frightened so long as they hold the mug in both hands. The deleterious effects resume if the mug is not held in this way, and their durations are still active.