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).
Although some believe the Australian Aborigine has been using the didgeridoo for over 40,000 years, the oldest records of Aborigines playing the didgeridoo date back 2000 years in the form of old Northern Territory cave and rock paintings.lthough some believe the Australian Aborigine has been using the didgeridoo for over 40,000 years, the oldest records of Aborigines playing the didgeridoo date back 2000 years in the form of old Northern Territory cave and rock paintings.