pen tray with optional felt inlay
Any felt can be used for this but i went for a premium feel and went with some higher quality felt (link below)
Amazon Felt that i used:
Jtnohx Stiff Felt for Crafts, 2mm Thick Colour Felt Sheets, 8 Pcs 20x30cm Craft Felt Fabric for Sewing & DIY Projects (Black White Grey Blue) : Amazon.co.uk: Toys & Games