Wearable electronics? Wow.
Adafruit introduces electronic cufflinks for individuals who wants something special in their outfit and loves technology.
"The cufflinks are CNC machined from the finest 6 series aluminum for durability and beauty...[m]achined with a "screw in backing", [and] contains a circuit board with pulsating LED and battery."
Furthermore, the pattern can be changed because it's open source!