edding 4095 Chalk Marker – White – 2 Chalk Pens – Round Tip 2-3 mm – Chalk Pen for Blackboard, Wipeable – for Writing on Windows, Glass, Mirrors – Blackboard Pen with Opaque Colours : Amazon.de: Home & Kitchen
Edding 4-751 Glossy Paint Markers, Set of 3 - Paint Marker for Decorating Glass, Metal and Plastic : Amazon.de: Toys
Amazon.com : Edding 4-16-5"Funtastics - Window Fun" Fibrepen Set (Pack of 5),Multi-Colour : Office Products