IKEA white taper candles - cheap and just right!
For advanced play - IKEA coloured candles - same rules as with everything else apply - try on your self first - that will help you learn the temp and best distance.

TIP: wax will cool as it is falling through the air - so longer the distance - cooler wax.

And … for more fun, try scraping the cooled wax of the skin with a blade. You can go all artsy and make pictures or writing … just make sure the waxse is immobilized - to prevent the cuts