As a result this allows the identification of the region of origin of the instrument. These are usually fairly subdued, matte earth colours. Though exquisite, care must be taken with these pigments as they are easily destroyed by oils. Just the moisture and oil from your hand hold on the didj will rub away the ochre finish. An ochred didj should never be sealed with oil.
More modern methods employ synthetic paints for decoration.
These are far more permanent than their ochre counterparts, and are available if a plethora of vivid colours, many of which are used. Didj's decorated with these paints are often very colourful and attractive but are of course less faithful to the original decorative technique. Of course the decoration on the didjeridu does nothing to alter the way the instrument plays, but if you are interested in your didj as a small reflection of the ancient aboriginal culture then a faithfully decorated didj will bring much pleasure. Useful Checks Slap the Mouthpiece One excellent method to aid in the selection of a didjeridu to which I have been enlightened, is to slap the mouthpiece with the palm of your hand and listen to the response. Give it a good solid flat handed smack.