It reminds me of a piece that I was talking to Val about, where a girl a few years ago did a piece that was a fake PAT tested sticker, as she thought that everything in the school had to be PAT tested and found it funny so replicated this sticker and stuck it to everything, door frames, taps, toilets, which is a very clever and subtle way of doing something, which is something I would like to incorporate within this idea.
As you see in the link below these explanation labels are everywhere within galleries, so wouldn't look out of place. (the link is from that new google arts project, absolutely nuts that you can look at any gallery in different parts of the world, accessible art or what!)
NEW YORK METROPOLITAN MUSEUM OF ART