One of my prized possessions is a Nagra SN 'spy' recorder. It's about the size of a thin paperback and was originally commissioned by the CIA in the 1960's. They were made by Kudelski, a Swiss company renowned for their production recorders for film & TV.
It's a beautifully made piece of machinery and I needed a proper way to display it. So, I designed and printed a stand which prints flat and then slots together.