If so, are they any good?
There’s a German poet named Elia Kaufmann who’s got a poem containing various puns on Einstein’s name:
“Onestone, Twostone, Threestone, you precious stone of physics… Onestone, Icestone or Warmstone…”
Read one or twice, but in very lowbrow/infantile contexts - it’s a pretty lame pun.
Isaac Asimov made such a joke in one of his columns, involving the relativistic correction for Mercury’s orbit. But, of course, that was in English.
By the way, in the comic strip Alley Oop, the name of the scientist who invented the Time Machine was Prof. Wunmug. A “Stein” is a “drinking-glass” as well as a “stone”, so
“Wunmug” = “One Mug” = “Ein Stein” = “Einstein”
I’ve been known to comment on the fact that a stone understands gravity.
There is an museum in Antwerpen where they paved a terrace with these.
I don’t have the book handy, but Walter Isaacson’s biography of Einstein mentioned a joke about Berlin trolley conductors that was a pun on “Einstein.”