I don't have a business just yet. I came up with an idea and I would like too "get 'er done"!
I need a white line around an inch maybe an inch and a half. I want to press it and it disappears and shows the black background. I do not want it to be electrical.
I have already come up with having a thumbwheel with half black and half white.
I have already come up with having tiny "door slides".
I have already come up with having long nuts on all thread and spinning them around to expose the black.
I am looking for a way, like a clicker on a pen, that you press and it spins around so you can't see the white side.
The objective is to press it white and black like on and off.