When running the Scottish Physics Teachers Resource website (sptr.net) I occasionally published some cryptic crosswords for the members to try. They included a lot of physics and astronomy terms and facts, and not a few in-jokes. Only two people to my knowledge ever completed the puzzles, although there may have been more. One is the very clever and erudite John Lovell, for whom I have promised to try to make some more.
The solutions can be found at cullaloe.net/puzzles. Number 2 was a word search, specifically for Sean Duffy.