This humongous wall sticker is a pretty cool moon decal by day and an incredible glow in the dark lunar wonder by night. IT’s 39 inches in diameter, which is enough to put some serious glow in the room. You even get some smaller bonus moons if you’re lucky. This would be great as a gift for kids but could easily be a conversation starter in a main room of the house. How awesome would it be at parties? The XL is $178, but if that doesn’t do it for you, there’s always the XXL that is 71 inches across for $590.