I vacated my seat on a long-distance KLM flight to make room for a
mother and her small child. A few hours later, a stewardess came to my new
seat, thanked me, and presented me with this (full) barfbag. Inside were two
ceramic Dutch houses, which proved to be miniature bottles of Bols
liqueur. I immediately registered for KLM's frequent flyer programme, and
will ask to be seated next to small children on all future flights.
There's a tiny KLM logo on the base of this bag, along with the
words, "KLM thanks you for helping to create a cleaner
environment". And for cutting their cleaning bills too (1999)