No one person designed this. It happened over the course of a day at Chelsea flower show, as tea drinker after tea drinker swirled their tea, ditching the bag and stick. I doubt either that these two objects were designed with this use in mind – that just happened too – a strange by-product of their perfect relationship to one another, amplified many times over.
This is modular design. It works for one tea drinker, and it works for many. It doesn’t rob people of the joy of solving their own problems.
More things should be designed like this.