The following recipe is for 4 candles, give or take. Begin by hacking up your wax into manageable size. I try to do everything over a towel, as well, to keep things from flying all over. About 1 inch chunks or smaller is good. I use a knife and a steady downward pressure to break the bricks apart.
Bees wax is more intractible than parrafin.
You can also melt down old bits of candle you have left over. Expect to have some wax on the floor when this part is done. Remember that one 16 oz. Turn the burner on to medium, and begin adding pieces of wax to your tin cans. If you're using recycled candles, mind the colors so you don't turn all your candles mud green.