A smile-inducing intervention specifically designed for green spaces. Our research suggested that being observed could be a powerful motivator to not litter, so these gnomes take the idea of “watching eyes” to the next level. Traditional guardians of the natural world, gnomes playfully remind people to look after their local environment and use the bins. Although not evaluated specifically for littered gum, a pilot showed that this signage is effective in reducing general litter, including small items.