Marker holder tray for whiteboards (Black) — Albion Office
Amazon.com : MyGift Wall Mounted Black Acrylic Dry Erase Whiteboard Marker Holder Stand with 10 Marker Slots and Eraser Holder : Office Products
Stacked Marker Holder | Marker Storage Unit | Stamp-n-Storage
TORUBIA Magnetic Marker Holder for Whiteboards/Fridge/Refrigerator/School Locker/Office, Magnetic Pen Holder Organizer Mount with Anisotropic Magnet Pad - Walmart.com
Amazon.com : Magnetic Dry Erase Marker Holder,Pen and Eraser Holder for Whiteboard,Magnet Pencil Cup Utility Storage Organizer for Office , Refrigerator, Locker and Metal Cabinets (2 Pack) : Office Products