All you do is press the nail into the wax, it's that easy.
I'm a big fan of swirls so this was my first design but I plan to try alot more different designs.
And I love the contrast of the dark nail against the vanilla toned candle.
This was also done free hand but you can punch the wax with a pencil before actually creating the holes with the nails.
Now I hate to say this, but so far the cheap-cheap candles don't hold up well when piercing the nail into the wax.
But I'm still in the experimentation process so I'm still trying to figure out which materials work best.