Jrambow writes –
I thought this was really cool. It’s a drum and bell machine I saw at Bangalore’s Bull Temple. You can see the motor to the left and how it’s connected to the drumsticks. It wasn’t going, unfortunately — would be fun to see it at work, and to see how you adjust the speed of the drums and bells.
As you can see, the machine was in a cage to prevent curious people (and monkeys!) from getting a rhythm going at the wrong times.