Plum’s Space Zone II trampoline was the star of John Lewis’s 2016 Christmas advert alongside Buster, the bouncing boxer dog. From its Lincolnshire base it supplies customers including department store Canadian Tire and France’s King Jouet with outdoor play equipment and toys. It was founded in 1988 by Jonathan and Diane Schaffer, 61 and 60 respectively, and is now run by their son, Paul, 31. Sales to customers in 40 countries boosted exports to £3.4m last year, helped by operations in Hong Kong and Australia.