While recuperating from 9 miles of snowshoeing, I saw this photo on MoCo Loco, fell in love, and immediately clicked over to String Garden by Fedor's website.
After looking at every single photo and video they have up, and searching in vain for more information,
I still have no idea how this was done,
but I'm even more enchanted.
I think I'm going to have to spend the rest of the winter trying to figure it out and make my own.