Amazon.com: Allstarco 20mm Crystal Clear H102 Flat Back Round Acrylic Gems Pro Grade - 20 Pieces
Amazon.com: Inner Diameter 20mm Transparent Acrylic Connector Tee Straight Elbow Coupling Adapter End Caps Fish Tank Aquarium Pipe Fittings - (Color: Tee) : Pet Supplies
Amazon.com: 25 x Crosshead Countersunk Screw Nuts and bolts, Transparent Clear Plastic Acrylic, M8 x 20mm - Acrylic Plastic Screws, 5/16 x 25/32 : Industrial & Scientific
Amazon.com: Beadthoven 120pcs 20mm Round Bubblegum Chunky Acrylic Beads Mixed Color Opaque Beads for Jewelry Making Handmade Crafts Supplies Colorful : Arts, Crafts & Sewing
Amazon.com: Pack of 60 Transparent Clear Plastic Acrylic M6 x 20mm Nuts & Bolts, Washers -Acrylic Plastic Screws, 15/64 x 25/32 : Industrial & Scientific
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