Free Puff Stitch Hat Pattern - B.hooked Crochet--I think if you eliminate the first rows of this pattern and use a crochet chain or a ponytail band, you could easily make this into a messy bun/ponytail hat!
This can easily be converted into a crochet pattern - lacy baktus - free pattern! Row Knit YO, across the row. Row Knit, make sure you knit the YO through the back loop. Rows 3 and Knit. Repeat rows 1 through 4