Chan-Chu carved obsidian money frog. Made with obsidian this frog protects your money from leaving your home as soon as it gets there. This Chan-Chu Money/Prosperity frog is carved in a very detailed manner, and makes an excellent addition to your home to bring prosperity.   It represents a popular feng shui charm for prosperity. This mythical creature is said to appear during the full moon, near houses or businesses that will soon receive good news (most of the time, the nature of this good news is understood to be wealth-related).