This is a fairly simple idea but it's fun to add a little twist onto it.
I've started by creating two separate sides to work with.
I began on the larger of the two sides and created a Half-French Braid by only gathering hair into my bottom strand of the braid.
I continued this braid around the back of the head and just past the middle point. I then continued plating my braid without adding any hair in and had my princess hold that braid while I moved to the other side.
I did another Half-French Braid and gathered all the remaining hair that was down. Once that hair was gathered I finished plating that braid as well. I took both of my braids and twisted them around each other and bobby pinned them into place.
I had some loose strands hanging out over my braid bun so I curled those and let them fall loosely over the bun.
I added some flower hair pins to finish it off.