You Will Need
1 pack pampas puff pastry sheets (or any other brand, provided the fat used is vegetable based)
Assorted sized round biscuit cutters.
Cut circles with the biscuit cutter, and gently peel off sheet.
Using a cutter the next size down, cut three quarters of the circles to make rings like so. (You don't have to use scalloped cutters by the way, as long as you have two different sizes you can do any shape you like. Maybe stars for Christmas?)
It will take a bit of practice, but once you know how, it'll be a cinch!