There's no excuse to live with boring empty walls, especially with all the hassle-free products available that add instant coolness to them. Blik, the world’s first removable wall graphic company, produces really unique, different, and a lot less permanent solutions than wallpaper or paint. Their latest ones are these self-adhesive fabric tiles that are eco-friendly and non-toxic. You can choose from a variety of patterns, but if you decide you want to create your own, they can easily reproduce it for you. You can also check their amazing line of wall decals here.