Adafruit can always be counted on for something lovely and geeky for the ladies. Whether you are one, or have one or more in your life, the iNecklace might be just the thing.

From Adafruit: Sophisticated. Elegant. Open Source. The iNecklace is a gorgeously machined aluminum pendant with a subtle pulsating LED. Perfect for the playa or with Prada. Made for women who celebrate art, science, engineering and great design. For any lady who loves technology and wants beautiful, geeky jewelry. Welcome to the future!

The iNecklace is completely open source. The source code, circuit board files, schematics and CAD files are posted on GitHub. Mod & Hack away! The iNecklace can be reprogrammed to any pattern you'd like!

Currently retails for $75.00.