Amazon.com: Case for Stylus Pen Silicone Stylus Pen Cover Holder Anti-Slip Stylus Pen Sleeve Compatible with Type C Charging Port Stylus Pen : Cell Phones & Accessories
Sherpa Pen Company (Denver, CO): Rollerball, Sharpie, and Fountain Pen Cover - YouTube
Very Goods | Sharpie Marker Cover - Midnight Metal - Cool Material
Sherpa Pen Covers - Cover Your Fountain Pen, Roller Ball or Sharpie.