Give your zen garden an upgrade with Sandscript. This device uses magnets to let you control a ball with three dials, tracing patterns in the sand. You can make symmetrical mandala patterns or randomized doodles on command.
Sisyphus is a kinetic art coffee table that uses a marble that automatically rolls to draw intricate designs on a layer of sand. The artist behind this ingenious table is Bruce Shapiro and has raised over $1.9 million on Kickstarter for the tables.