What some of us do is find a cardboard tube such as from a roll of toilet paper or a spool of twine..., even a plastic tube will work if it is thin, easily breakable, or open at both ends (cardboard can be cut off the candle), as close as possible to the diameter of the candle (you may have to experiment with different size candles), wrap the candle in heavy plastic and insert it into the tube and duct tape the ends. Wax usualy only gets soft..., doesn't usually actualy liquifiy so the wicks don't usualy move enough to become a problem. However in a very warm environment you can break some off of the candle leaving a longer wick then tie the wick around a small stick or wire stuck through the tube like a pot support in a hobo stove and store the tube upright all the time.