Gloria writes in about this free pattern for baby booties, made from small scraps of yarn you have around. SockPixie writes:

My biggest problem as a sock knitter, is what to do with my left over yarn, in particular with these no bigger than a walnut darling balls of yarn. These slippers are magic to work. NO SEAMS at all, no origami construction, all garter stitch, mostly knit in the round, and about one pair per hour! My promise to myself is that I will knit a pair of slippers for every pair of socks I knit, and that I will donate the slippers to my local community health center.

Baby booties from small scraps of yarn – Link.