I really really wish I could spin (and ply) a more uniform yarn so I could produce my own yarn weights and colors. My handspun yarn still is quite exotic looking. I've watched a few videos to try to do better (an Ashford and a Judith Mackenzie video rented from Village Wools) but I suspect it just takes more practice and effort on my part. I'm better on the spindle than I am on the wheel.
Here are some fair isle socks from a variety of yarns - the main color is Froehlich Blauband.