Participants write down significant events and order them chronologically Source: Agile Retrospectives
Divide into groups with 5 or less people each. Distribute cards and markers. Give participants 10min to note down memorable and / or personally significant events. It's about gathering many perspectives. Consensus would be detrimental. All participants post their cards and order them. It's okay to add cards on the fly. Analyze. Color Coding can help to see patterns, e.g.:
Ideas for actions compete for 2 available 'Will do'-slots Source: Judith Andresen
[Caution: This game creates 'winners' and 'losers'. Don't use it if the team has power imbalances.]
Ask everyone to think of 2 changes they'd like to implement and write them down on separate index cards. Draw 2 slots on the board. The first team member puts their favorite change idea into the first slot. His neighbor puts their favorite into the second slot. The third member has to pitch her favorite idea against the one already hanging that she favors less. If the team prefers her idea, it's swapped against the hanging one. This continues until everyone has presented both their cards.
Try not to start the circle with dominant team members.