Well, despite Buster's ceaseless quest to be the most prolific Caption Contest contributor (11 out of the 55 entries on this one; a full 20%!), sadly no mention for him this time. Ooops! Too late...
3rd place to Fox3, with:
Pitot heater burns on the left wrist were a dead giveaway of a 1950's secret agent.
Runner up is G-ARZG, with:
"The prototype VS300 shows that it already has more
baggage space than an HS125!"
However, the trophy winner for this round is 6Z3, with the simple but amusing:
OK, it's carry-on only if it fits without forcing.
Take it away 6Z3!
