online games in which hunchers login, create groups. Each member of a group grabs a hunch from the hunchbox, throws it on the table. All members of the group see the hunches and begin riffing off new ideas.
After a set period of time, riffing stops and group members vote on their best hunch of hunches. They then throw this onto the main table that all the groups can see.
Then all members riff on the main table of ideas. See what comes up.