These puzzles are usually containers of liquid, where the object
is to drink from them without spilling all over yourself.
I have 2 of these, each ordered from the "Bits & Pieces" catalog.
They're both similar: they hold water, and you have to drink from
them without spilling water out of the many holes. They are
supposedly reproductions of ancient Greek or Phoenician puzzles
or something like that. Cool, huh?