Gambling with the periodic table just got real. These dice made from pure Cu (copper), Fe (iron), Zn (zinc), and Ag (silver) are what happens when chemists design casino equipment. The guy below clearly understands the element of risk here - those dice are worth more than most lab budgets. Imagine rolling snake eyes with silver and having to explain to your grant committee why you literally threw money across the table. Chemistry roulette: where you win some electrons, lose some valence bonds.