These are really good. Using dark chocolate instead provides a yummy healthy alternative. Also, I found it worked best to freeze toothpicks in the little balls and use those to roll them around in the chocolate. It was easier and came out looking very pretty. Next time i would probably only take half out to work with at a time as they tend to thaw while your dipping them.
I didn't have pretzels so I use bread crumbs and added a little salt. You can also add powdered sugar to thicken the mixture up a bit and provide a bit of sweetness. That way you don't have to worry so much about turning to mush.