At Wat Pho there is a building that houses the 43m reclining Buddha (the largest reclining Buddha in the world). Why is he reclining? This is when he died and achieved Nirvana. As I was looking at Buddha, I heard noises on the other side that sounded like pebbles or coins going into a bowl. When I got past Buddha's enormous mother of pearl feet, I saw it. You contribute 20B and get a bowl of tiny coins and there is a row of bowls along the other side and you put money in each bowl, probably while thinking peaceful, meditative thoughts, and making merit.
Instead I was thinking that in some previous season of the Amazing Race, it was a fast forward, where they either had to count the number of bowls or coins.