Nikodama (ニコダマ) is a new Japanese high-tech toy: a pair of two gazing eyeballs that you can put on practically any object or surface.
But that’s not all. The fun part: once both eyes are aligned on a surface, they send each other signals and start blinking simultaneously.
A pair of Nikodama eyeballs which measure 7.6 cm (3 inches) in diameter is powered by 6 AAA batteries. The package comes with a decoration sheet so you can make the eyes look even more fun which decorative tears, eyebrows, nose and such.
Watch Nikodama in action here: