okay, let me nerd out here, I became friends with someone who is a character performer (someone who plays a character in the theme parks) at Disney World a couple years ago online and now she’s helping me get the low-down on the Rapunzel wig because I want to try to make it just for kicks! Turns out that thing is three parts, includes foam throughout it to keep the shape, velcrow to the back of the costume and buttons in the bodice to keep it from sliding around her shoulder! and the reason it’s around the shoulder and not down the back like in the movie is because the wig weighs A LOT. Also, people tend to grab and yank on the hair, could you imagine if a kid tried pulling a braid like that?!
but yeah, does this look like three parts to you?! the first is the base around her head, then the braid, then the clip in tail.