Chest

[Becoming]

theres pros and cons really to the whole chest idea. you can either do it by the map, which is pretty lazy and means only 1 chest per map, or you can make them based on an x and y position so you could have all sorts of containers on one map, for instance.
Your in a weapons shop and there is 3 barrels in the corner, you would be able to put the item in any of the 3 barrels without them conflicting with the item.