Whenever I need to press little puffy sleeves I have a technique that I use. I would enjoy having a puff iron that is made just for this...but I don't need to puff sleeves often enough to spend the money. So, I thought I'd share with you all how I puff sleeves when the time does arrive.
I unbutton the garment so that I can access the sleeves from the inside. (The dress I am showing here is the little dress I just recently finished. I'll show the entire dress in the next post.)
Then I spray some starch evenly into the sleeve area.
I wait a few moments until the starch is absorbed into the fabric and then I turn on the blow dryer and aim it into the sleeve. The air will puff out the sleeve like a balloon...which is fun. And it will dry the fabric that has just been starched. Move the blow dryer around so you don't scorch the fabric.