I've seen this photo floating around the Internet for a while and I finally tracked down where it came from (it's little Della McAllister's room) and then tracked down who made the wallpaper. It was a long journey, but totally worth the trip, as you'll soon see. Turns out, French wallpaper company Minakani is behind this triangular awesomeness. Oh, and this and this and this.
I don't know if you can get Minakani wallpapers in the U.S., but I sure hope so. Because I have JUST THE SPOT for those fantastic triangles.
See more below!
More pics after the jump!