The Puff Stitch is family of the Bobble Stitch and the popcorn Stitch. Here are some beautiful Puff Stitch Patterns you can use to create awesome items.
Driving spoke beautiful pattern - for a hat?
Puff Stitch Beanie Video Tutorial [ "A puffy fat heart hat, step by step.
Crochet 3D Beanie Hat With Leaf Stitch