Quick Tip: Create a Rainbow Brush Using a Blend in Adobe Illustrator - YouTube
63 Rainbow Brushes for Procreate. Color Changing Brushes for Calligraphy, Watercolor, Inking, Sketching, Drawing and Chalk. Dual Tone Brush. - Etsy Canada
Zamora's Rainbow Brush (Illustrator) by ChancletaPower on DeviantArt
2 vector seamless pattern brushes with rainbow. Complete brushes with corners, end and start tiles. CMYK adapted Good for groovy, hippie style, kids design 23217411 Vector Art at Vecteezy
How To Create a Rainbow Art Brush | Veerle's Blog 4.0
Rainbow Brushes | Illustrator Tutorial - YouTube
How to Create a Rainbow Text Effect in Adobe Illustrator | Envato Tuts+
Easy Rainbow in Adobe Illustrator - YouTube
How to Create a Rainbow Text Effect in Adobe Illustrator | Envato Tuts+