‘25/10 Crowd Sourcing’ is a structure that allows you to rapidly generate and sift through a group’s boldest actionable ideas in less than 30 minutes. Christiaan Verwijs has applied this structure both to small (12–20 members) and large groups (>150). Not only is it an innovative way to identify bold, ‘out of the box’-solutions, it is also appreciated by participants for its highly active nature.
Read about it here: https://medium.com/the-liberators/use-25-10-crowd-sourcing-to-spice-up-your-scrum-events-56fdd127e1dc