Clemens Habicht’s 1000 Colours is a 1000-piece jigsaw puzzle in which each piece is a unique color. When assembled, it forms a CMYK color chart. Also available in halftone and vibrating color patterns. Save an extra 15% with code SEMIANNUAL in The Awesomer Shop.
SuckUK’s four-color pen comes loaded with cyan, magenta, yellow, and black inks, so you can draw images in full color with a single pen by crosshatching. While it doesn’t let you adjust saturation levels, it’s still a nifty tool for sketching and belongs in every artist’s toolbox.