Looking at a single Cubist Wedding Ring, I realized that if I flipped the top arc, I ended up with a nice heart design. The dimensions work out to 28" by 23", which makes a nice big pillow or a good sized wall hanging.
This design can be customized with a name or poem.
Cubist Wedding Heart Designs
Add a border to get a throw. 
I call this design "Something Blue". It makes a beatiful throw or can be done as a queen or king size bed quilt. Customize it with a couple's names and wedding date for a special wedding or anniversary gift or memento.