Sample skeins are good for small things. I like to use them for adornments/embellishments on things I make (knit, primarily). They could also be used in patchwork knitting, which calls for a meter of each color or thereabouts.
Nicky Epstein's book Knitted Embellishments would likely give you alot of ideas in that area.
Mine also like to sit in my yarn basket and say "aren't I cute??"
(posted by me on spindlers, 11/1/2001)