http://www.frontiernet.net/~toller/sign.jpg
We are always asking each other if they have fed the dog breakfast, etc.; so
I made up this sign to tell. It now shows that she must be fed dinner.
When anyone feeds her, he will slide the cover over, showing that she must
be let out for the night. And so on.

The neat thing is that it is entirely black walnut. The back and the knobs
are sapwood.
Well, I've never seen it before...