Tennis is one of the five most polluting sports in the world, due to the long, carbon-intensive manufacturing process of tennis balls and their short lifespan. With only 1% of the 400 million balls produced annually being recycled, most end up in landfills, leading to significant waste and resource depletion. Soundbounce addresses this issue by repurposing discarded tennis balls into circular, modular materials for acoustic dividers, wall paneling, and furniture. This innovative approach recycles 283 balls per square meter and reduces CO2 emissions by approximately 8.5 kg per square meter.