arschfidel

It's from one of the shows listed under this paragraph: https://en.wikipedia.org/wiki/Diane_Morgan#Philomena_Cunk

Morgan is perhaps best known for her portrayal of Philomena Cunk, an extremely dim-witted and ill-informed interviewer and commentator on history, culture and current affairs.

I've heard (so no certainty), that they analyzed plastic trash collected from beaches and found plastic bottle caps to be a significant part of it. So they thought it would be worth trying to solve that problem.