I was looking at my collection of work that exists in my sketchbook. Many of these works have never been produced; they only have existed in the book as sketches and writing.
One such object is a foot/shoe sweeper. This item protects you from marriage/commitment. It's a riff of of the common Cuban myth: Sweeping one's own feet can lead to a life of solitude.
I believe it reinforces a sticky notion that you are not good a chores like sweeping the house and therefore you will be an unfit partner. Maybe it is something else having to do with bad luck. It is met with almost the same energy as seeing someone walk under a ladder.
The tension that gets built up as you witness someone acquiring bad luck is like seeing someone about to get knocked over by a football player or a huge snowball. Oddly enough, if someone sweeps your feet, there is equal panic. This effect can be a mutation of the original myth but regardless it carries the same weight.
The motion of this object should not follow a direct axis, but can use a gearing that can cause it to turn and move along an angle or a perpendicular axis. Ultimately, it should resemble a human movement.