Crossword Dice is a word dice game that involves each player throwing seven dice, each with a variety of letters and wild spaces on them.
After rolling the dice, each player is given a fixed amount of time to construct a crossword based on those letters.
Bonus points are scored for using letters in more than one word.
After tallying your score, the dice are passed to the next player, who then rolls and tries to come up with his own crossword.
After every player has had a roll, the player with the highest score wins.

Here a nice wooden set in a green leather etui, and the so-called 'I Qubes' made of bakelite.