I love Zen arts. They are minimal and calm.
The Zen stone garden is one of the best. There is nothing but sand and a few stone. They usually signify the universe. Stones are stars like the sun, the moon and the earth. They remind us of impermanence of everything.
It is a good idea to build the miniature of a zen garden on a wooden box and place it in your office to remind yourself the philosophy of Zen Buddhism.
The box itself is extremely simple. The mitre joinery was used. Just make sure the dimension fits the space in your office. The wooden stick was a bit tricky. I made it entirely out of two wooden rods of two different diameters. Make sure that it is small enough relative to the size of the wooden box so that it can create the ripples proportionally.