How can you make a rotten egg fast?

To make a rotten egg quickly, you can simulate the smell by mixing a small amount of sulfur powder with water in a container. Then, add an egg and seal it tightly, allowing it to sit in a warm place for a few days. The sulfur will create a foul odor similar to that of a rotten egg. However, be cautious, as the smell can be quite strong and unpleasant.