Battle Field

I'm doing a very slow clear out of my sons bedroom as it will soon become my office. He's not been kicked out of home - just moved to a bigger better room.
However, moving his 'stuff' is more problematic. I don't want to throw out his childhood just yet, but it does take up a lot of space.
This shelf holds his airfix models and years of dust. We couldn't think where to move them to, so they have stayed.