The counter-espionage folks next door call my place 'the gallery'. That's fair; I kinda do have a bunch of art...
Anyhoo, they were in the other day looking at stuff. There's an embossing by Mike Tingle called 'Art is...', which has lots of people in different stances (art being different to each individual). The neighbours thought the stances looked like semaphore, albeit without flags.
So I went online to where the semaphore folk hang out, and lo and behold, the stances spell 'meaning'.
It certainly helps to have codebreakers next door!