A good example of a promotional keychain figure.
I don't know how this one was distributed but JMC did have their own airline so maybe it was an inflight gift/merchandise.
From the web:
The JMC brand is part of the well-known Thomas Cook Holidays group. The acronym JMC is actually the initials of the name John Mason Cook, the son of the original founder of the company, Thomas Cook.
JMC Holidays began operating under the JMC name in March of 2000, primarily operating from London Gatwick and Manchester airport.
According to Wikipedia, JMC ceased in March 2003 and was rebranded as Thomas Cook Airlines.