Using Rainbow colors or several colors of one yarn crochet a palette blanket and trim it with white or black yarn. The colors of the rainbow work well with this free pattern but you can also use a variety of colors such as all neutrals, pastels, browns, greens, reds, etc.

It works up easily and you can take it with you to work on as you travel.

The Complete pattern is available https://www.craftdrawer.com/download-the-free-ultimate-crochet-palette-blanket-pattern/