I suspect anyone who has ever set foot on a beach has either drawn something in the sand or at least been tempted to do so.
As seems to be standard these days, anything humans can do, machines can do better. Which is why some guy has developed a sand drawing robot.
This clever little machine can write or draw things in the sand without you having to list a muscle. Sure, you will have had to program it first, but that’s not physically demanding.
If this sand drawing robot comes to market expect plenty of videos of people proposing to their significant others by setting the machines off and waiting for the message to appear.