Perusing the thrift shops when I come across a coffee mug and I have a flash of inspiration...
It's not just a coffee mug, why, it's not a coffee mug at all!
It's an engagement ring!!! That also holds coffee....
Function and beauty...much better than the old engagement rings that merely advertised vulgar bad taste, why, add a few rhinestones and a Starbucks card and you've got a wedding that I could afford...