A4 sheet of transparent plastic (~0.2mm PET recommended) Hole punch 3D Printer A rigid or flexible filament (PETG recommended in USA) A rubber band (if using flexible filament) Clear gloss report covers, aka acetate covers https://www.binding101.com/clear-gloss-report-covers PVC Film 8.5 x 11" 10mil sheets http://www.oregonlam.com/Binding_Covers_and_Reports_Plastic_leather_linen_embossed_composite.html?gclid=Cj0KCQjw6_vzBRCIARIsAOs54z6824rZzYhULYWQEIpYZSjCIezd5rB0iyfV24LvC1xZxMbsvHL4P08aAv2gEALw_wcB&fbclid=IwAR2Tyh5JQUsdZ8QF4cQ0AlD4VqaofHui9BzgKtzEgAtze4_-XTpWs9CIu_4 In case of last resort this is 4mil https://www.amazon.com/Samsill-Transparent-Projector-Transparency-Printers/dp/B07F45YXJD/ref=sr_1_5?keywords=Transparency+Film+for+Plain+Paper+Copier&qid=1585430955&s=office-products&sr=1-5