In Eberron: Rising from the Last War, the Artillerist subclass for the Artificer gets a feature called Eldritch Cannon. When you summon the cannon you can choose to summon it as either a Small object or a Tiny object:
[you] magically create a Small or Tiny eldritch cannon in an unoccupied space on a horizontal surface within 5 feet of you. A Small eldritch cannon occupies its space, and a Tiny one can be held in one hand.
Does this mean that my character can walk around with a Tiny-size eldritch cannon, carrying and using it as a weapon? Or does it still just sit and move on its own?