A young LEGO fan has invented a non-permanent glue to help hold builds together.
Tripp Phillips is a nine year old from the US, who has patented a temporary glue that he designed to hold together LEGO models. The glue dissolves in warm water so that the bricks can then be dismantled.
CBS Philly reports that after winning first prize with the glue in a school contest, his father helped him to get a patent and start selling it. The entrepreneurial father-son team are using online marketplaces including Amazon and Etsy to sell the product around the world.
The family made the 7,000 bottles sold last year at the kitchen table.