Amazon.com : MNGARISTA 2 Pack Heavy Duty Badge Holder, Vertical ID Card Holder for Credit Cards, Clear ID Window, All PC Polycarbonate Plastic Housing, 5 Cards Capacity, Built-in Elastic Clip, Black :
Rigid Badge Holder with Clip Strap - Ideal for Conferences
Vertical Badge Holder Hard Plastic ID Card Holder Transparent Double-Sided NFC | eBay