I will show you how to make this Lettered shaped lights that can make your room even more beautiful.
Step 1: The Shape
First draw the shape you want to make in a piece of cardboard and cut it. You then have to cut more pieces of cardboard with the same height but with the lengths of the walls of the shape.
Step 2: Walls
Then stick these pieces to their corresponding side of the shape to make some kind of walls in the shape. To create this shape in 3D.
Step 3: Paint (optional)
I painted my shape white but it's up to you if you want to paint it and the colour you want it to be. I painted it white because it contrasted with the colour of my wall.
Step 4: Lights
Then you have to make some holes spread ou aound the the shape in which you are then going to put the light. Then with some lights (used a strip of Leds i bought in the Chinese shop) put the Leds in the holes of the shape.
Step 5: You Have Finished
Congratulations you have made a beautiful shape to decorate your room