These are pretty easy to make, they take a little time but are worth it in the end, they look super cool and are a great way to refresh the standard halloween decor. I went with turquoise instead of orange, just for a change of pace. And because everything I do involves turquoise somehow...
1. With the scissors or xacto knife, cut a small hole in the top of your skulls, about the size of a penny. The plastic on mine was pretty thick, so be careful, wear protective gloves and cut away from yourself / fleshy areas or fingers you want to keep.
2. Fill the skulls with plaster of paris. Check the box for instructions on how to mix. When you're done do NOT put any extra down the drain - it hardens down there and causes no end of trouble. Wait for it to dry and then crack it to throw it in the trash. This stuff dries pretty quicky so don't hang about - get it mixed and get it poured.
This will make your skull heavy enough to balance the weight of the candle. You could try other methods, maybe sand, but this worked for me.
3. Leave the plaster to dry completely, usually overnight. When it's dry, you can start to decorate any way you want, using the acrylic paint. I used turquoise and added just the details of the empty sockets and mouth. On the other one I painted it black and used a silver sharpie to add the details. Colour coordinated my candles too, although be careful when buying coloured candles - make sure they're coloured all the way through and not just a coat on the outside.
4. When the paint is dry, use the super glue to glue the candle to the top of your skull. I chopped mine down from their original size, as they would have toppled over, and it gave a flatter surface to glue.
5. After the super glue set I used a lighter to melt the bottom of the candle, so it melted all over the skull and looked wicked awesome.
Et voila - mega easy skull candles. Once the candle burns down you can either snap it off and glue another one in its place, or melt the new one into the gap.