Selling silver and gold trade cards.
Each card is the same size as a standard credit/debit card, but contains actual value - not just a representation of value. With a simple yet beautiful design for each denomination, these cards will impress everyone you show them to.
Part of the design was consideration for human factors like blindness and quick visual selection. They are about the same thickness as a credit card, and the shape of the window in the center of the card can easily be felt from the front, while the embedded precious metal can be felt from the back; making non-visual selection easy. The various colors and other markings aid fast usage as well, allowing immediate identification of the value of the card.
3% discount when buying with bitcoin.
site link: https://shiresilver.com/