Amazon.com: 20mm Flat Back Round Acrylic Rhinestones Plastic Circle Gems for Costume Making Cosplay Jewels Pro Grade - 20 Pieces (Crystal Clear AB H702)
Amazon.com: United Scientific RCB115 Clear Acrylic Rectangular Block, 115mm L x 65mm W x 20mm Thick : Office Products
Amazon.com: 20 x Grey Pan Head Screws Polypropylene (PP) Plastic Nuts and Bolts, Washers, M8 x 20mm, Acrylic, Water Resistant, Anti-Corrosion, Chemical Resistant, Electrical Insulator, Gray, 5/16 x 25/32 : Industrial & Scientific