I just made a new video showing you my exact steps on creating color palette books. Basically, you tear color sections out of magazines or old books, arrange three colors you like and then add an accent color. Check out my blog to get the link!
5 Essential Tips: Select Perfect Painting Palette
Choosing Your Watercolor Palette: A Complete Guide
Creating Color Palettes with Using Images and other Techniques
Creating Color Palettes with Using Images and other Techniques
Recreating the Colour Palette of Edgar Degas - Jackson's Art Blog
The beauty of using a limited color palette, by Christian Behler
Make Your Own Paint Palette!
Where to start when choosing a color palette for your next painting — Pink Puddle Studio
REPURPOSING AN OLD WATERCOLOR PALETTE