I've actually had one, there's an Irish import's store not that far from here that I shop at every now and again.
There's a UK import grocery maybe 25 minutes from where I live that I go to to get crisps and other odds and ends when I'm in an eccentric mood (wow, the British do not eff about with their potato chips. Seriously, some great and downright odd flavors). I'll see if they've got any of those Milky Bars there (I originally thought he was talking about Milky Way bars (I often see the Milky Way Dark bars in the foreign foods section WTF?)).