A wearable multitool EDC shaped like a ring, so you can carry an entire toolkit on your finger - Yanko Design
Key Ring Multi-Tool, Solid Stainless Steel Construction, Polished Finish, 6-in-1 Tool with Screwdrivers, Pliers, Wire Cutter/Stripper and More - Walmart.com
The Man Ring
The Man Ring: Titanium Utility Ring Version 2.0 - Etsy
SWISS+TECH ST60300 Key Ring Multi-Tool with LED Flashlight, 7-in-1 Tools, Use for Auto (Single Pack) - Keychain - Amazon.com
Amazon.com: Samorillo [2-Pack] Leatherman Pocket Clip + Lanyard Ring | 2 Quick Release Pocket Clips + 2 Lanyard Rings for Leatherman Wave, Wave Plus, Charge AL, Charge ALX, and Charge Ti Multi-Tools : Office Products
The Ring Curve EDC Pocket Pry Bar Multi-tool - Gun Metal – Teale Designs