Snowballs

I've previously used snowballs as an icebreaker - given each student a piece of paper to write their name, something about themselves and the hardest maths question they can answer.

Recently it was suggested that it could be used to creating polished answers, by posing a question for each student on a card, then they throw them across the room and add to each others' answers. A possible (maybe ideal?) way it would be play out is shown below...

The ideas could then be shared with the class, as the person with the snowball would not be "responsible" for the ideas, merely sharing someone else's.