I tried so hard to get an idea and finally I did get one. It is a very simple thing I call "sentence marker" but it wasn't so simple to build it. I want it to be of materiel metal but I couldn't really make one so I bought a reflex hehe, and tried to make something similar. But it didn't work. So I went to a store again and bought really thick dark blue paper , so that it would be more similar a metal color. That didn't work either. Finally I find a driving practice sign "övningskörnings skylt" and tried to do something of that and funny enough, after hard work with my ruler, scissors, pen and some other things, I did get my model that looks like how I'vd planed my invetion to be.
Well I had worked with my invention all day and tried to do my best, but we will se the reaction today at 14 pm.