I've bought a couple of hair extension wefts from
http://shop.store.yahoo.com/texasbeautysupplycom/index.html. The price is right - they cost $7.50 apiece - though there's a learning curve. (I still have to figure out an easy way to comb out a new weft.) I swear I'm only going to buy stuff for projects I have clearly thought through from now on. But this is fun.
Hair weft comes in a 5' piece, which is a long string that has hair sewn onto its length. It is normally cut into strips, and glued, sewn, or otherwise fastened into a client's hair in horizontal layers. I took a piece of Shirley Temple curly weft, and folded over about 6 inches of it into a bunch. I then cut this off and pinned it together. I twisted my hair, intending to tuck the switch into the middle of a cinnamon bun with the curls hanging out, but the presence of the switch prevented me from putting the bun up tightly enough. So I put the hair in a pony first, after which it bunned up successfully. Here you can see the corkscrew curls hanging gracefully down.
Next, I took the rest of the weft, wrapped it around the bun, and pinned it in place. It was a little heavy, but at least part of that was due to the weight of my still-damp hair.
I think this is a little bit too curly (ok,
way too much curliness], but I might wear it to a costume ball, if I was trying to be a lady of the French court.