Independently published Color by Number Patterns: An Adult Coloring Book with Fun, Easy, and Relaxing Coloring Pages (Color by Number Coloring Books for Adults) Paperback – Large Print

Color by Number Patterns: An Adult Coloring Book with Fun, Easy, and Relaxing Coloring Pages (Color by Number Coloring Books)

Brain Games - Color by Number: Stress-Free Coloring (Green)

Dual Markers Brush Pens, 36 Fine Point Art Marker, Double Tip Colored Pen for Adult Coloring Hand Lettering, School Classroom Art Suppliers