Hello my name is Matthias, I am from Bavaria, Germany.
Here you can see my zen garden for your desk. It is built from approx 750 LEGO pieces, with the rake, the sand is moveable for relaxing feel. I built it because I needed something to play with on my desk.
I think it would make a great LEGO set because everyone needs a thing to play with on the desk. Working hard on your computer? Take a minute and arrange the sand pieces in order or by format. In the Sandbox, there are one by one round plates and one by one studs.