Product Idea |

Gyroscopes/compass/gyro horizon

Blue square: is the 1x1 round tile, thats going to be the brick these things will be printet on ( or created as stickers )
Light blue Square: the gyro horizon, also known as attitude indicator. used in airplanes.
Light green area: is the Compass in various models. used for cars, hikers, scouts etc.
Buttom square is the Gyroscope, used in submarines.

Here is shown it also can be used on a 1x1 flat tile