After watching various films where they have bathroom cabinets that then swing out to reveal a secret "stash" cavity, I was then inspired to build my own!
First of all, I had to decide how deep the cavity was going to be without actually hacking into the wall itself! So about 3cm deep would suffice. This was also going to be a corner cabinet, so slightly more difficult to engineer.
The cavity depth was fine. I then needed to build the shelves etc and have them on a hinge, so the whole arrangement could swing out.
Once the hinging mechanism had been engineered, I then had to bolt on a swinging door, but one which wouldn't interfere with the other part of the cabinet swinging out!
And this is the finished result.