The (most likely) smallest Arduino-compatible sewable pico-Platinchen #SENSableTHING
This is an analog-style digital clock with multiple display states, a 24-hour alarm, a countdown alarm, multiple alarm display states...
Make your own inexpensive (<$10) NFC ring out of wooden veneers!
Easy DIY build using 3D printed components, a RGB LED light strip, and wood veneer.
Find KEYs, WALLET, BAGs by ringing them using google assistant