At the last knitting guild meeting, one of the ladies brought a couple of hats she knit out of left-over yarns. She even made up a bunch of "kits" for us! She just put together some odd-ball yarns that were left over and there was not much left to make anything out of them. She used 3-4 yarns together, 10 mm needles, so it is a fast knit. You can use any stitch pattern you like, and any colours you like! When one runs out, just add in another.
I made one, which was fun, and with the yarn I had left, I made another. I did use some of my own yarns in them too. She said we are to bring the hats back (for our charities) and to make up a kit for the next person. That is one way to get rid of odd balls of yarn!
I really enjoyed doing these. It went fast -- about one evening each. And they were so much fun to do as well, especially when you mix in various colours. I almost want to keep these for myself! Okay, I have enough yarn that I can make up a couple for myself, and these aren't my colours, but they feel nice.