Made from blank canvases and metal repair tape. DIY: cut metal repair tape and adhere in geometric patterns to the canvases. The silver material stands out against the blue walls. And lots of other blank wall ideas on this link.
DIY Canvas Painting Ideas - Simple Gold and Solid Colored Canvas - Cool and Easy Wall Art Ideas You Can Make On A Budget - Creative Arts and Crafts Ideas for Adults and Teens - Awesome Art for Living Room, Bedroom, Dorm and Apartment Decorating
Mounted Tree Branch Wall Art - Tutorial Use branches with lichens, peeling bark,etc
DIY Projects Using Wallpaper: Make your own hanging wall art with a few wallpaper scraps. Roll the top and bottom of the wallpaper over a wooden dowel and attach with glue or staples. Tie a decorative ribbon or cord from the top and it's ready to hang.