We will be starting a unit on probability in the next week or so and I think this would help a great deal.
Last year I was lucky enough to work with a teacher who used the whiteboard spinner frequently. She would draw a circle with 3 parts labeled evens, odds, all. When the students were writing down their assignment they would one by one spin the spinner and make tally marks. The outcome would be the deciding point of what their homework would be. How fun!
Of course, any variables could be included in the circle.
My challenge would be to think beyond the basic probability lesson and think of different ways to use it!