Amazon.com : SPPQ 20 Packs Pen Adapter Holder Set Compatible with Cricut (Explore Air/Air 2/Air 3 and Maker/Maker 3), (Sharpie/Bic/Crayola/Sakura/Pilot/Pentel/Paper mate/Mitsubishi uni-ball) : Office Products
Amazon.com: Cricut Explore One Accessory Adapter and Pen, Black
Amazon.com: Pen Adapters for Cricut Explore Air 3 Air 2 Air Maker 3 Maker,Compatible with Cricut/Paper Mate/Pilot/Sakura Gelly Roll/UM 153,8 Pack
Cricut Explore Air 2 Universal Pen Holder and Sharpie Holder
Amazon.com: Hadwoer Pen Adapter Set compatible with Cricut Explore Air 2/ Air 3/ Maker /Maker 3, 4PCS Pen Holders Can be Perfectly Compatible and Replace the Cricut Pen Adapter, Compatible with All