Built in supports are included for this excellent model. There is an empty chamber going all of the way up the inside of the dragon's snout, and the smoke exits from either nostril. There is a small reservoir for water at the bottom, which a standard "bowl" rests in. I strongly recommend printing in PLA only. You will need a standard 14mm slide piece with a short stem. If the metal isn't resting in the water, then you run the risk of melting the PLA. Also, do not hold the flame on your glass bowl for long periods of time, otherwise the stem will reach temperatures high enough to melt the PLA and you will lose your air-tight seal. -Also requires brim for a successful print.