First, I cut some felt rectangles. 2 from each colour. I didn't measure, just made the biggest pieces possible from the felt I had. Next, sew a seam down one long end of each pair of rectangles. Turn the felt so the other 2 long sides are matched up, but the shape of the tube is a heart. Make sense?
Once you have all your heart tubes sewn up, cut them into about 1" pieces, so you end up with this:
Then I strung them all together with thread, like so:
(yes, I probably should have changed the thread in my sewing machine, but I was too lazy, so it stayed black!)
Viola! Hang up your cute little Valentine garland!!