Our battered old tennis balls have raised more than £300 for the North West Air Ambulance.
Once they've lost their zing they end up in a big tub in the shop at Windermere Aquatic where dog owners donate cash to take one for their four-legged friend to chase and have fun with.
We reckon it's perfect re-purposing! Thanks to our member Kay at Windermere Aquatic for helping us to help this great local charity.