Which retail innovation strategy saved Japan's traditional 'washi' paper-making tradition from near extinction in the early 2000s?

Traditional craftsmanship around the world faces extinction as modern manufacturing takes over. However, some innovative retail strategies have successfully preserved cultural heritage while creating sustainable businesses. This trivia question explores a fascinating case of retail innovation that transformed the fate of an endangered cultural tradition and created economic opportunities for artisan communities.

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Creating luxury stationery lines featuring washi paper that were sold in high-end department stores globally
Developing a subscription box service delivering monthly washi paper crafting projects to international consumers
Establishing government-subsidized washi paper museums with attached gift shops in major tourist destinations
Partnering with technology companies to incorporate washi paper into smartphone and tablet accessories