Oh, how I love this game! Son Macaron is a beat-passing game where students lay their right hand palm up in the hand of their right-side neighbour's left hand (phew, that's a lot of directions) and then pass the beat by crossing their right hand over to tap on the hand of their other neighbour (don't worry, there's a video below to show you what I mean).
At the end of the song, the person who is passing the beat must try to catch the hand of their neighbour, while their neighbour must try to escape in time - whoever loses the exchange is out and must move outside the circle.
To further engage students, I have a set of cards with all of the lyrics in sections, each with an untuned percussion instrument assigned to them. When a student is out, they must pick up an instrument and play along with the rhythm of that section of the song.