I save my yarn scraps, pieces of yarn too small to knit with but so long I don't like to throw them away. I've been saving them for a while not knowing what I would make with them, now I have the perfect thing. Yarn Vase!
What I used: yarn, glue, buttons, and one tall can.
I painted on a thin layer of glue as I wrapped the yarn around the can stringing on buttons here and there. I read double stick tape or a spray adhesive both work well too.
Need a full tutorial? There's a nice one on DesignSpongeOnline.com or try using a drinking glass for your vase like at AllYou.com