This is good for getting students to listen to others when reading a text.
Everyone has a copy of the text to read along. One person starts reading it… if they make a mistake, or someone thinks they do, they shout ‘Rhubarb!’ (in the Target Language, naturellement) and tell you what they think went wrong. If they had in fact made a mistake, the student who shouted out ‘rhubarb’ takes over reading and wins a point for their team (usually boys v girls/sides of the room/the usual groupings). If they hadn’t made a mistake, the student who was originally reading gets a point for their team and carries on reading.
It means students actually listen to others and are focussing on pronunciation. Feel free to do a summary afterwards of common mistakes that were missed, as there are always some!
This also works in pairs and small groups.