The formulas I use to mix my own custom colors of metallic ink - like champagne gold and rose gold!
How To Mix Calligraphy Inks
97 Calligraphy ideas hand lettering, lettering, calligraphy letters
Ink & Paint - Inks - Metallic Ink - John Neal Books
How to Mix Custom Ink Calligraphy 101
How to Make Calligraphy Ink with Jacquard's Pearl Ex Powdered Pigments
HOW TO: Mix Custom Color Metallic Inks — Crooked Calligraphy
Calligraphy Clip: Colour mixing in the pen
Shuttle Art Metallic Marker Pens, 24 Colors Metallic Paint Markers Fine Point for DIY Card, Calligraphy, Art and Crafting Projects, Works Great on Black Paper, Scrapbooks, Fabric, Rock. : Arts
Dyvicl Metallic Brush Marker Pens - Metallic Pens Art Markers for Calligraphy, Brush Lettering, Black Paper, Rock Painting, Card Making, Scrapbooking, Fabric, Metal, Ceramics, Wine Glass, Set of 10 : Everything Else