To add a touch of liveliness to your soy wax candles you can try to make tilted layers!
Before trying myself, I've looked for tutorials and found pretty complicated ones... Some people suggest to use buckets with sand or soil to tilt your container, which is in theory a pretty wise suggestion...if you live by the seaside or if you have a garden!
What I did use instead was a wood chopstick (yes, the same as the one I use for whipping soy wax!!!) that I put beneath one side of the glass jar, and few objects (small boxes, books etc) that I put all around to prevent the chopstick to roll away or the jar to move from his tilted position. See pic below.