For Diy lampshade projects you can use most diverse materials like a lace or if you are adept in knitting you can make interesting decorations.
Industrial Geometric Lampshade
DIY Ruffled Burlap Shade - Cottage at the Crossroads For the owl lamp
Recycled and Crafty Spoon-Scaled Lampshade
Step-by-Step: Striped Lampshade : Decorating : Home & Garden Television
Mesh Basket Lampshade