Containers within containers


Would it be possible to allow certain containers to fit within another container, even after you’ve put something within them? For roleplay reasons, I would like to make a flask to put my medicine in, and then put that flask in a bag. Or make a cabinet in the kitchen where you store bottles of cider or wine.

It would also be cool to be able to have a small box where you can hide stuff, and then hide it in a wardrobe or something.

I understand that it could be misused to be able to carry a lot of weight, but perhaps these small containers could be made with equal weight to what they can hold? That makes sense too, after all. If you have a liter of water, it would not be any lighter if you poured it on a bottle.