Another take in the sock bun! Push the sock down to the bottom of the pony tail. Spread the hair out around the sock and secure with an elastic. Braid the remaining hair wrapping it around the bun, pinning it down till its secure.
Make your ponytail fuller with this bobby pin hack. After tying your ponytail, secure two or three bobby pins halfway through the hair bobble. Hopefully the images alone will explain this one! (Bottom left is before, bottom right is after)