Derwent Blending Pen, Set of 2, 2 mm & 4 mm Tips, Blender Pen, Ideal for Blending Pencil Lines, Professional Quality, 2302177 : Amazon.de: Home & Kitchen
Staedtler Lumocolor 316 WP8 film pen, non-permanent, water-soluble, F-tip line width approx. 0.6 mm, High Quality, Set of 8 Colours, assorted colours : Amazon.de: Stationery & Office Supplies
Amazon.com: Caran d'Ache Classic Neocolor II AQUARELLE Water-Soluble Pastels, 40 Colors
Arteza Aquarell Buntstifte dreikant 48er-Set, Aquarellstifte in tragbarer Runddose, Stifte für Aquarellmalerei, wasserlösliche Farbstifte zum Mischen, Schichten & Aquarellieren, Profi Künstlerbedarf : Amazon.de: Bürobedarf & Schreibwaren
Water Brush Pens – Set of 4 brush tips – Perfect to use with watercolor paints, water soluble pencils, brush pens, markers – Blends with water – Convenient – Aqua Pen – MozArt Supplies – Party Supply Factory