Shadow boxes can look so cool if they are done right.and that is the problem, trying to do them right. Here are some ideas on cool ways to make shadow boxes come back into style like those high waisted shorts from our mothers era.
39 Ingenious Furniture Hacks You Ought To Try - Homesthetics - Inspiring ideas for your home.
maybe not the moon, but the idea is good--DIY Gold Moon Wall. Use a projector to make the outline then just fill in the rest.
Love this Monochromatic Wall map
diy washi tape frames // perfect for a gallery wall photoshoot backdrop without the commitment