From Anne again!
This can also be used for teaching anything that needs chanting (e.g. counting numbers). One person leaves the room and the other pupils hide an object. As the person comes back in the pupils start chanting louder as the person gets nearer and quieter as the person is further away until the object is found. When the object is found, another pupil gets to go out.
(this one is also one of the games on "short & simple ideas for MFL classes - the link is on this page under "Other fun and games" - it's very much worth checking out! - Danielle)