Lots of nice graphical imagery you could pick from, like the plane silhouettes used in a few logos. Very easy these days to find something that could be the starting point for your own design or to copy directly.
But first thing I thought of was something practical. I don't know if you have the relevant real estate clear still but how 'bout a forearm rule? Adam Savage got one earlier in the year (
here) which has probably done most to make them a thing, but he's not the first person to get one. Here are others that might provide inspiration: