OOAK's (One of a Kinds)
These are one of a kind skeins which are not always available. Just because they are one of a kind does not mean they are misfits - quite the opposite. Most often they are made from a foraged source which I don't want to deplete - aka picking all of the Dahlias, or hurting a plant to harvest it.
What can you use them for? I recommend any child item, socks, hats, small scarves. Check out Ravelry and filter by yardage/weight to see all of the possibilities. There are more than you think!