Oil Painting Sticks Crayons/water-color Pens - Ultra-soft Oil Painting Stick 6-pack - Aliexpress
Oil Markers - Australia
A hex-shaped paint crayon specially formulated for marking shiny smooth surfaces such as glass - windshields and stainless steel.
Hex Smooth Surface Paint Crayon - Windshield & Glass Marker | Carmel Yellow / Box of 12
Carmel Paint Crayon Pack of 12 Solid Paint Marker Oil Paint - Canada
Monami Multi-coloured Retractable Wax Crayon Set 12 Piece, Colouring Pencils & Crayons, Hobbies & Crafts, Stationery & Newsagent, Household
Tempura Paint
Classic Marker Sets
CarmelIndustries
Sakura Solid Marker Solidified Paint Crayon XSC - Sweden