Dominate the party with OBJCTS' Bottle-Opening Ring, which conceals a handy tool in a piece of pretty, stainless steel jewelry—brilliant.
An attractive and functional addition to your barware collection, you'll appreciate our Beer Bottle Opener Ring.
From 0.98 Accmart(tm) Handy Stainless Steel Beer Drink Bottle Opener Ring (pack Of 2)
Not my thing, but if it was magic bottle opener ring to the rescue.
Check out Bottle Opening Ring - by Evan_Dewhirst on Shapeways and discover more printed products in Rings / Jewelry.
original ring thing - ring that doubles as a bottle opener.