Sharpie Metal Barrel Pro Bullet Marker Black | Toolstation
Permanent marker - Wikipedia
Fix rusted metal with gold metallic Sharpie pens
Flame-Marker™- Permanent Marker for Metal Surfaces - LabTAG Laboratory Labels
Shuttle Art 48 Colours Permanent Markers, Fine Point Marker Pens Permanent, Coloured Marker Pens Set Perfect on Plastic, Wood, Stone, Metal and Glass for Doodling, Colouring, Marking : Amazon.co.uk: Stationery & Office