With wax play, it is best if you use soy candles. They don't have metal in them and won't cause burns. Depending on the level of pain tolerance you can drip wax just about anywhere. Make sure to give more distance between the surface and the dripping point when hitting more sensitive areas. Longer candles are better for grip and also for other uses. They can be used to penetrate, tease, and even use the flame for fire play. Try not to over do it w/ the wax because the skin will react negatively w/ it if it isn't properly taken care of. Use plenty of oil and I suggest to only have wax on clean, shaven surfaces.

Let me know if you need more info. Wax play is one of my favs!