This is a variant a friend of my wife came up with during a slow night with his gaming group. It follows all of the conventional rules except that when a green description card is drawn the Referee instead draws a Trivial Pursuit question card and selects one of the questions on the card as the description for the round. The players play red thing cards as potential answers to the selected question. The variant or printing of Trivial Pursuit doesn't matter. When my wife's friend played it the game went over very well and lead to a number if funny and creative responses.