Easy. You just start by making a chain as long as you need. Then pick an easy edging that you like (Google a free one). Work the pattern back and forth on the chain, then glue it to your project. You can make it longer than you need and just cut it off since you will be gluing it, it won't unravel. I used to make edgings then sewed them to V-neck Tee shirts.

-Babka

Here is a link that might be useful: Crochet edgings websites

BABKA....I CAN DO THAT .....THANK YOU SO VERY MUCH