They all look like hot peppers...not sure about the first ones, growing upright, but they could be sweet...a good way to tell is to rub them and smell your fingers. The second long red crinkly one is a cayene for sure. The last look like a habanero, but again, there are sweets that look like that, so it would be best to do a sniff test first.
A simple way to preserve them is to slice rounds & pickle them. Very little cooking involved - just make a pickle brine, fill your hot sterilized jars with the rings, and pour the brine in over it, the seal & process.
Here's a good basic recipe:http://www.food.com/recipe/4-square-...peppers-425048
I only soak peppers if you're doing them whole...you don't have to if you're just slicing them. I like the look of mixing colors. Do take the advice of really shoving them in there tight. And wear gloves, of course!
If you don't have the equipment, they make this great new starter kit:http://www.freshpreservingstore.com/...TCL+1440010790
All my local grocery stores have it.
I shipped some pickles overseas when my BIL was deployed, they got there in very good shape. Just wrap in paper, then in bubble wrap, and then put it in a ziploc in case it does happen to break, it won't damage anything else.
I can see the hot pepper eating contest now!