Equipment: A playing card, a glass, colored water and a tray. What it does: The card is placed on the glass of water and they are turned upside down. The water stays in the glass.

Calby Ng Making the Credit Card They Wouldn’t Send Me | Glass Credit Card Posted: April 1, 2025 | Last updated: April 1, 2025 I tried to make a functional glass credit card from scratch—and it ...