Just print off any picture you want, then spray paint a piece of wood black, cut the picture to match the size of the wood. Using Mod podge coat the wood then lay the picture on top. Once it has dried thoroughly, use sandpaper to rough up the edges, then put a layer of mod podge over the picture. paint some eye hooks and use pretty ribbon as a hanger and voila
Get some inspiration by looking at the following examples in the collection called 20 Charming Vintage Interior Ideas From Reused Materials. Check how you may benefit from your useless and old stuff and how you may turn them into something beautiful.