I have a metal door with a set of windows on it, in my rental house. The door is great, I love the style, but sometimes, I just don't want so much light pouring in, and well it just doesn't look finished. The previous tenants had put holes in it to screw in a curtain rod holder, but it just looks tacky, so I decided to make a magnetic valance that would just attach to the door, so I wouldn't have to drill any new holes or try to figure out what kind of hangar they used before.
So anyway, I had some fabric and I just sewed it up around the edges (yes, I know it's not straight, it's the price I pay for not measuring, but I'm ok with it) along the top hem I folded it over and sewed straight along the top, sewed closed one side put in about 5 round magnets, and sewed them each into their own little section. The final product: