Quick now! Can you spot the ignition key?

A tip from a friend: -- "Here's an old trick that I use when I leave my keys in the ignition at a show or ....?   (See picture above).

Another view (below). Just ground down the key shank to fit into the opening in any MGA dash knob, apply a little Super Glue, and voila! Hiding in plain sight".
-- Robert Agar (Green Valley, AZ, USA)

That would really confuse an auto thief... No door handle, no trunk lock... no hood release....no brake release... now no freakin key.