An odd one I rediscovered while looking for something else in my phone photo archive:
The company I work for supplied a number of scooters for McLaren to use (the ones you see picking their drivers up when they crash or break down during a race weekend).
The contract was ended when Honda became their engine supplier (coz Honda make scooters too) and the bikes came back with the track passes still on.
As a result a small number of people have bought used scooters with McLaren F1 listed as the first owner in the log book.