Or it would be cool if you could make a ball shape with a solar power source inside, and it could push itself around and collect energy. It could turn on and of

Or it would be cool if you could make a ball shape with a solar power source inside, and it could push itself around and collect energy. It could turn on and off rows of "buttons" to give itself momentum. Throw in a camera for object tracking; or a bright light - you could make little glowing orbs that roll around, float in water etc. Throw a bunch over a wall - they move around and map rooms as a swarm.