Device I play around with a lot that throws many folks for a loop! But after I explain to them what it is they pick up on it. Enjoy letting them use it! Fun to clue them in on how things were done!
In reality all it is is a big compass.
Founder Ancient Order of the 1895 Winchester
"Come, shall we go and kill us venison? And yet it irks me the poor dappled fools, Being native burghers of this desert city, Should in their own confines with forked heads Have their round haunches gored."