Hey,it would be kewl if when you finished drinking from a shot glass or a mug. You still had that shot glass or mug, an you could keep it, an fill it. You get the basic picture. An it would be kewl to mix drinks in a container. I remember in this one MOO I played, I had a leather flask an I filled it with all different types of alcohols an I got the perfect mix; I got it to be good an strong. That was pretty kewl…Heh...Tho the flask was used to hold oil for a lantern =P