Amazon.com: MHUI 304 Stainless Steel Plate Thickness 4mm Metals Round Sheet Circle Disc,Diameter:50mm (See The Size Chart for Quantity),Diameter: 100 mm : Industrial & Scientific
Amazon.com : uxcell Blank Metal Card 80x50x0.4mm Brushed 201 Stainless Steel Plate for DIY Laser Printing Engraving Dark Gray 20 Pcs : Arts, Crafts & Sewing
4mm x 7.87" x 9.84" Black ABS Styrene Plastic Flat Sheet Plate: Amazon.com: Industrial & Scientific
Kafuty Clear Acrylic Plate 4mm Thick Overlock Computer Case Open Frame DIY Base Stand for ITX Motherboard 170mm x 170mm: Amazon.de: Computer & Accessories