So I had a thought. I used to make box forts as a kid and it was a blast. Why not do that in sk, in a way? I figure...irl, we get to keep boxes. Unless we damage them too much to be of use. Perhaps your knight does the same thing when opening a box - just too enthusiastic to get the item sometimes, they destroy the box in the process. Or the box is just too darn tied up with ultratough tape/ribbon. Ugh.

Each box you open (lockbox or prize box...gift boxes maybe?) has an okay chance to yield one of the following 1x1 furniture items, in addition to whatever prize was within:

-Empty Closed Box (you retained the lid - looks exactly like a box when you plop it on the ground to open it. Good job! Your knight carefully opened it with patience!)
-Empty Open Box (you busted the lid and hinge mechanism)
-Empty Damaged Box (just a crumpled box with a smashed lid propped against it)
-or no box. Calm down! Whoah there!

These boxes will always look pretty much exactly like the box you opened (with certain lockboxes even acting as a light source, probably only the Empty Closed ones), and can be placed in a Guild Hall like other furniture items once stored in the Treasury.

A new machine could even combine them into walls from out of the treasury - but that's like, phase two of the idea. It could involve something like the Armero machine.

I would fill a room with these things and call it Fort Kickbooty, in which authority is not recognized. I tried to do it with the winterfest stuff, but it wasn't quite right.