Washi tape head board--keep thinking of endless children's bedroom possibilities with this inspiration >Link goes somewhere else but I love the washi tape wall idea. Thinking a castle for baby girl room.
This Pixelnotes wallpaper, by designer Duncan Wilson, consists of four layers of varying grey tones. Each layer is like a post-it note and every time you split a layer, the individual pixel gets darker. (Diy Wood Work Home Office)