You can dry peppers with a dehydrator, the oven, or by air drying them. I think air drying peppers is the easiest and also prettiest way to do it, so I am going to tell you how to do it this way. You will want a long, strong, needle, some sturdy thread like fishing line and of course your peppers. First of all, leave your peppers whole, do not remove any stems or leaves. Next string the peppers up using your needle and line, making sure to leave space between the peppers for air. Now once you have your peppers strung, hang them in a place that is warm and dry, direct sunlight works best. It may take up to a few weeks for your peppers to dry, but as I said this is the easiest method, and it makes a great decoration too.