What a story!
On their website Travelex say
Foreign exchange specialist Travelex today unveiled a unit of currency that has been created for use in space. It is the first currency of its kind in the universe and has been developed in partnership with a team of scientists from the National Space Centre and the University of Leicester.I want one. They don't tell me where to get one.
I'll never get to spend it in space,
I just want one.