Through Color 6mm Laminate Fiber Cement Board Non Asbestos Fiber Cement Outdoor Panel Shandong Zibo - China Construction Material, Decoration Material | Made-in-China.com
32x32 RGB LED Matrix Panel - 6mm pitch | The Pi Hut
6mm 8mm 10mm Wood Grain Siding Panel for Prefab House - China Fiber Cement Board, Water Proof Cement Board | Made-in-China.com
Medium 16x32 RGB LED matrix panel - 6mm Pitch : ID 420 : $24.95 : Adafruit Industries, Unique & fun DIY electronics and kits
MDF Board (L)2.44m (W)1.22m (T)6mm 11050g | DIY at B&Q