One yarn that I like to use to make fast projects is Red Heart Unforgettable Yarn. One of my favorite features of this yarn is the color combos.
Red Heart Boutique Unforgettable Yarn 3935 Dragonfly
A Review of Unforgettable, a yarn by Red Heart
Yarn Review!: Red Heart Unforgettable — Crafty Intentions
Product Review: Red Heart Unforgettable Yarn
Red Heart Boutique Unforgettable Yarn 3935 Dragonfly
Red Heart Unforgettable Yarn, Stained Glass, 3.5oz(100g), Medium, Acrylic
CraftEaze
Bernat Blanket Color Pooling Yarn Review - CraftEaze
Red Heart Boutique Unforgettable Yarn 3965 Candied
Red Heart Boutique Unforgettable Yarn 3965 Candied