Radioactive Glass Marbles
These Radioactive Glass Marbles remind me of a New Year's Eve tradition / superstition. Some say if you can eat 12 grapes in as many strokes of midnight when the year changes over, you will have good luck and prosperity in the year to come. And if you don't...you will poison your fate for the new year.
The world must have collectively skipped the grape-eating thing on New Year's Eve 2019.
Anyway, the Radioactive Glass Marbles look like grapes. Though I definitely would not recommend eating them, or even placing them in your mouth to create that green-glowing piehole effect the ladies love.
The marbles have been manufactured with a touch of radioactive uranium, which emits its eerie glow when placed under a UV light, and will continue to do so for thousands of years. Radiation levels are small - presumably small enough to be safe - but they will register on a handheld Geiger counter if you buy some and want to test the authenticity of your purchase.