Use a small metal plate or bottlecap to hold the incense under the volcano and prevent burn marks on surfaces, Ensure central placement under volcano to prevent it melting. I have only printed this in PLA, i do not know how ABS will react to the heat!

The type of incense in the pictures is 2.5cm high!

Print time with 80/120 speed and 0.3 Layers is around 5-5:30h