I swear most of the DIY projects that I do for my house are entirely so I can cover up something necessary but unsightly. Usually electronics, because it seems like nobody makes cute ones! Anyway, this is actually more like a "look what I made!" kind of post than a full on DIY but I'm definitely still going to explain how I did it in case you want to do something similar :)
I have a projector and pull-down screen instead of a television, which means that above my bed I have a grey projector attached to my wall with cords going down behind my bed. It's always bothered me, but I wasn't really sure how to cover it up. Then I got this shelf, and situated it so that my projector rested above it slightly. Then I made a cardboard cover that I can put over it whenever it's turned off.
I really only watch tv at night, so during the day the projector is turned off and I cover it up as part of my making-the-bed routine every morning now. I just found a box that was the right size to fit over the projector and I painted it to look like a little house! I used acrylic paint for most of it and then used a black sharpie to add some detail, like the shingles and little window boxes. I added a drawer pull to the top so that it's easy to take the cover on-and-off, and I also cut out the entire back of the box and part of the side. Two reasons - a) it helps the box to fit over the wires and b) I don't actually want the cardboard to touch the projector. Even though I only cover it when it's turned off I still want to be extra careful.
And voila! Isn't it so cute?! I also got a cord cover and painted it to match my wall so that I didn't just have black cords hanging down the wall anymore. I can be a bit obsessive (okay, VERY obsessive) about making sure that literally every single element of my living space is functional AND pretty, and this finally solved one not-pretty thing that had been getting under my skin for a few years.