Blinker

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A Blinker is a particular kind of nano-cache container.

The name "blinker" comes from the blinking LED jewelry that was originally used to create them. The blinking LEDs were removed or painted over, leaving a compartment for a button-cell battery with a tiny magnet attached. The battery was removed and replaced by a skinny strip of paper rolled up into a scroll (the log sheet), and the magnet was used to attach the blinker to a magnetic object.

Today, ready-made blinker nano-caches can be purchased from various sources.

Sources

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