Made a pen holder for my niece's birthday , she can paint blank cats : r/crafts
Amazon.com: Marketing Holders Acrylic Pen Organizer Clear Tabletop Caddy with Handle Holds up to 120 Makeup or Paint Brushes Markers Pencils in Schools Offices Retail Stores and Homes : Office Products
Tooli Paint Pen Holder Laser File - Tabs and Slots with Laser Cutting - YouTube