Here is a video of an event. What do you think it was for? The answer is below the fold.
Believe it or not, it was part of a bar mitzvah, the coming of age ceremony when a Jewish boy at age 13 spiritually transitions to adulthood.
Some of these ceremonies, especially for children of wealthy parents have moved from solemn religious ceremonies to lavish spectacles of ostentation. I have been to bar and bat mitzvahs (the latter being the equivalent for girls) and have never seen anything like this.