New parents may appreciate a motor to rock baby cradle ( upper square unlit box) to get baby to sleep. While slow motor is shown as DC slowly pushing or pulling a string or rod on one side with spring perhaps to reset other side- an oscillating fan might that plugs into wall might move the cradle and give parents relief. Article showed it gave relief to one parent.
Many ways to mechanically rock baby's world for sure. Just do not make baby into milkshake.
