I got this Rapunzel at a garage sale, basically for free because her hair was so messed up! Look at this!! I've always wanted a Rapunzel in my dollhouse, so much so that I tried to make one myself! I'm not crazy about my sculpting, so I'm not going to relink to that, but it's on the blog! Somewhere!
I used a little bit of fabric softener and a lot of water and brushed it all out with a wide-toothed comb. The tutorials all say to use a wire wig brush, but... I'm a rebel. No, I'm not a rebel. I just didn't want to buy it. She did lose some hair, but that's okay! That's the magic doll detangler.
I might get someone who's a prettier braider to rebraid, but basically it's pretty awesome, huh?