This is not an easy task, but it will be fun, please be careful when melting the candles down. First you want to choose your colors that you would like to see blended together, and imagine what those colors may look like. If your not allergic to latex gloves then wear them while you are preparing your candle wax. get a sauce pan and put your chosen candle to be melted first, have your heat on the stove very low and add a touch of water so the candle doesn't scortch as it melts. This process takes a little while and you can either melt your colors together or seperate, while working with your candle wax and shaping your candle the way you want it to look, you have to keep your wax just soft enough to work with and be very careful with your hands, never dipp right into hot wax , test it first, before you squish it. Go with your imagination.