My grandmother gives them to neighbors as gifts every year, and they are all so excited to receive them. I think if she ever stopped doing it, she'd have a stampede at her door.
Large Crochet Hook
First, cut the nylon into a long strip. I make my strip a little over an inch. This does not need to be exactly measured. When I'm cutting my strip, and I get to a corner, I just turn and keep on cutting.
Next, chain 4 and connect into a circle. After that, just single crochet in the circle until you get the desired size. When working the middle, you'll need to put 3 single crochets in each spot. Around the outside, you can cut back to 2. Basically just put enough stitches in to make it lay flat.