Add a message for #tipping your fedora.

Grab bag: a magical bag that contains up to four small random items. You may take out any one item, and are allowed to view the contents first; after taking out one item the bag and its other contents vanish. Items cannot be put into a grab bag. If you tip it, one random item comes out and then it vanishes.

Command (generalization of #tip, or #dump, have both been suggested) to transfer all items from one container into another container without having to temporarily place them in your inventory. It would be better but perhaps harder to implement if you could pick and choose which items were being transferred, rather than all of them.