Thinner plastic allows the soil to heat up better but also tears more easily. Use plastic with a thickness of 1 to 4 mils for best results. Fill in the ditch around the perimeter with soil to hold the plastic in place. You may also wish to add rocks to the edges to help hold down the plastic.
The didgeridoo is a wind instrument traditionally made from the trunk of termite hollowed eucalyptus trees from Australia (like the one pictured at left, which is being played by our mate Lewis Burns).
Learning the Fundamentals. 1  1. Develop and practice your base drone apart from your didj. The base drone is the foundation upon which all didj sounds are built. 2  2. Place your lips on the didj. When you feel like you can hold your drone for 20 seconds or so, go ahead and put your mouth against the opening of your didgeridoo.