Which of these traditional product design features was specifically maintained to preserve cultural symbolism rather than being primarily functional?

Cultural traditions are often preserved through handcrafted products that tell the story of a people's heritage. Product design in traditional crafts has evolved while maintaining authenticity - sometimes through deliberate choices that may surprise you. Test your knowledge about how certain traditional products have been designed to preserve cultural significance while adapting to modern markets.

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The specific 41-thread pattern in authentic Scottish tartans, which identifies clan heritage
The round shape of traditional Japanese fans, which maximizes cooling efficiency
The blue color in Turkish evil eye amulets, which was the most affordable pigment historically
The zigzag pattern in Native American pottery, which prevents cracking during firing