#7 Coconut Shells
Like coconut husks, coconut shells may also be used as a source of fuel. Additionally, they can be used to make bowls, or crafted to create utensils and other items. Some people use them to create musical instruments or to form caves in aquariums. When ground, the shells of the coconut may also be used in various exfoliating products. Surprisingly, when crushed, coconut shells have even been used to form the coarse aggregate for reinforced concrete beams.
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