Early buttons were often made from materials like bone, wood, and shells, long before the invention of plastic or metal button-making machines.
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Bamboo flutes, depending on the species of bamboo used and the crafting techniques, can produce a surprisingly wide range of tonal qualities, from mellow and soft to bright and piercing.
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Some Lapidary artists use ultrasonic drills to cut incredibly intricate designs in gemstones, a technique impossible with traditional methods.
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