I love seeing how people decorate their audio spaces as it says a lot about the person and the creativity/art tastes.
I will start - my wife has counted cross stitched some amazing pieces that that I have up in my office/listening space.
The first one was a painting of an old diving helmet that was converted to CCS. It is just so neat to look at.
The second one is a CCS of a tattoo. The actually tattoo artist actually took the design an converted it to CCS - love the spider/skull motif.
The third was my PhD graduation present from my wife - it was a signed and numbered cel called 'San Trobe Bugs'.