I know these have made the rounds and it is getting a bit warm for wool (if you don't live in Buffalo that is), but I love the way these vintage swiss army blankets look. The image above is from swissmiss and I think I found the image below on Poppy Talk (again, my sincerest apologies for my bad image archiving).
Here's one more from Arthur's Circus.
Ebay appears to be the least expensive source. I would LOVE to re-cover our couch, but I think PRH would go over the edge if I came home with an armload of swiss blankets. I'm already driving him crazy by tying up all of our blankets like this middle photo. Form over function, baby!