In 1963, Heineken made 50,000 World Bottles designed to double as building bricks; two years later a prototype glass house was built, but technical hurdles stopped the concept from reaching the market

In 1963, Heineken produced 50,000 rectangular beer bottles designed to work as building bricks after use. The WOBO bottles were created to address bottle waste and a shortage of building materials, but production costs, design challenges and customer preference for traditional bottles stopped the idea from reaching the market.
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