- $12.00St. Lucia Day: Grayscale Images for Adult ColoringAmazon
- $3.98Black and White Pipeline : Converting Digital Color into Striking Grayscale Images by Ted DillardBetter World Books
- $7.99Steampunk Inventions Adult Coloring Book Grayscale Images By TaylorStonelyArt: Volume I (Intricate Mandala Patterns For Adults)Amazon
- $8.99Chinese Villages Adult Coloring Book Grayscale Images By TaylorStonelyArt: Volume I (Intricate Mandala Patterns For Adults)Amazon
- $8.99Fantasy Fairy Homes III: An Adult Coloring Book of 50 Whimsical Black Line and Grayscale ImagesAmazon
- $7.49Nativity Stained Glass Windows: An Adult Coloring Book of 20 Nativity Scenes from Stained Glass Windows as Grayscale ImagesAmazon
- $7.99Fantasy Fairy Homes Coloring Book: 42 Unique Whimsical Black Line and Grayscale Images - Fantasy Designs for Fun and Relaxation - Fairytale ArchitectureAmazon
- $8.99PEONIES & POSIES: An Inspiring Floral Coloring Book - 50 High Quality Designs to Color for Adults - Light Grayscale Images with Inspirational SayingsAmazon
- $13.99Electric Emotions: A Blacklight Coloring Book To Balance Your Moods: 50+ Soothing Grayscale Images Designed for Blacklight & Neon Highlighters & MarkersAmazon
- $6.99Fantasy Mushroom Homes II: A Mystical Fantasy Adult Coloring Book with 45 Grayscale Images of Fairytale Architecture (Mystical Mushroom Moments)Amazon
- $7.14Beautiful Bouquets: A Flowers Coloring Book for Adults. 50 Beautiful Flower Bouquets for Stress Relief and Relaxation. For Adults, Seniors, and Teens.: Grayscale ImagesAmazon
- $8.99Fantasy Fairy Castles, Gnome Homes and Mushroom Houses: An Adult Coloring Book of Enchanted Fantasy Architecture - Black Line and Grayscale Images - Perfect for Coloring PencilsAmazon
- $5.99Baby Dragons Coloring Book: Adorable Enchanting Fantasy Dragons For Adults Relaxation. Perfect Gift For Lovers Of Fantasy and Adventure!: Explore ... in a Black Outline and Grayscale Images.Amazon
- $8.49Cottage Halloween Coloring Book: Halloween Coloring Book for Adults Haunted Houses | Fantasy Treehouses, Pumpkin, Witches and Spooky Scenes, Whimsical Black Line and Grayscale Images for AllAmazon