Pipe Fittings - 5pcs PVC 1/2 inch to 8mm 10mm 12mm 16mm Hose Thread Connector For Air Pump Accessory Water Pump Joint Fish Tank Tube Adapter (1l2 inch-16mm(white)) - - Amazon.com
PVC Foam Board Sheet - 24" x 24" - White - 10mm Thickness - Used in Signboard/Display, Digital & Screen Printing, Crafts, Modeling, Photo Mounting, & Theatrical Props - Lightweight & Flame-Resistant : Industrial & Scientific - Amazon.com
Amazon.com: 10mm Tubing
uxcell PVC Hose Tube, 10mm(0.39") ID x 13mm(0.51") OD 1.5m Clear Vinyl Tubing, Plastic Flexible Water Pipe - - Amazon.com