Okay, my two cents. In the book "20,000 Leagues Under The Sea", in Part
1, Chapter 8, there is a reference to a motto engraved on several silverware
items found aboard the submarine Nautilus. That motto was...
"Mobilis In Mobili"
...which according to a footnote in the book is Latin for "moving in a
moving thing".
Maybe we could make some kind of 'colorful' icon with these words on it?