"Use a white light switch cover and decorate your own with sharpies!" Look, I tried decorating something with horizontal Sharpie patterns and it did NOT look like this. Also, do you really want to buy all those colored Sharpies? give your room color.
A geometric addition to your quilting, prairie points can be tricky if you don't know the fastest, easiest way to make them. Watch this video tutorial on how to sew continuous prairie points to make a prairie point border from one piece of fabric.