User blog comment:Mr.123/Crazy effects needed/@comment-5782071-20160130001936

Alexander Calder's First Mobile - One of two effects, depending on which works best.

1. When spun, it plays lullabies that entrances whoever hears it. To keep itself spinning, it must 'absorb' the kinetic energy of everything around it. (Not sure if this applies, since its not the lullabies themselves that stop motion)

2. When spun, it spins everything around it at very high speeds.

To be honest, I'm not too sure about either of these suggestions, but its worth a shot.