It's not often I get to use a Magnum song title in a post here but it seemed appropriate. Alternatively I could have quoted Case Hardin, "Been lied to be every road sign, crossed every white line...".
Whilst checking my emails this morning I came across this on the desk:
It's a piece of stiff plastic of the kind you find stiffening the collar of a new shirt. I guess it came out of some item of clothing newly bought by a member of the family.
The cut-out arrow is 11mm long. To anyone else it would be a piece of rubbish bound for the bin. To me it's clearly a stencil for adding direction markings to 1/300th scale tarmac roads.