The colour flame candles come in a six pack, and run on fuel that will run for approximately seven minutes. The candles come in red, orange, yellow, green, blue and violet, and the great thing is that the candle and the flame are the same colour. 
Really novel for birthdays, Christmas, or any other special occasions. Can be used a number of times, and there is no wax, easy to light- just unscrew the plastic cap to expose the wick and light. They are smoke-less, drip-less and non-toxic.