Always be prepared, that's my motto. And generally, my motto refers to being prepared to drink beer in inappropriate situations. That's why I love these bottle-opening cufflinks. At the alter for your wedding with a bottle of Heineken you just need to open now? You're in luck!
These can be yours for a mere $50, and I don't suggest wearing formalwear without them.
>a href="http://www.cufflinks.com/stainless-steel-bottle-opener-cufflinks.html">Cufflinks via Uncrate