Another thing is tiny stockings for Christmas tree ornaments (or if you’re Jewish, you can give them to your Christmas celebrating friends:-). Or you can make doll clothes, or baby booties. Even if you don’t have a baby or know anyone who does at the moment, they can be donated to hospitals or other charity services for parents who are in need. There’s a new book coming out with finger puppets. I like Troy’s glove idea in her 101 list-- I’ve seen patterns where the designer intended each finger to be a different color, and you could just do that. If you have pets or friends with them, you could make a dog collar. Coffee cup holders are small, and would be fine with several color stripes.
I always have little bits of sock yarn left and I’m going to borrow the idea I saw on Ravelry. A woman bought a tall clear glass container and wound each of her leftover sock yarn bits into balls and put them into the jar. I don’t know if I’ll ever have enough for that large of a jar, but I was thinking of finding a smaller one! Here’s a picture of what she did.
In her book, “Getting Started Knitting Socks”, (pg. 80) Ann Budd talks about “Magic Ball” Socks. There is a picture of striped socks she knitted from a ball containing 5 different yarns, and they’re beautiful! She fuses random lengths of the various colors together to get unique yarn for unique socks. The whole procedure is described in the book - which, by the way, is an incredible book!