I used a size 10 for my projects but wasn't happy with how coarse they looked. I just tested this thread in size 20 and even size 30 and size 20 is my new favorite.
Soft And Durable Baby Blue Bernat Sport Yarn, 12.3 Oz, Gauge 3 Light, 100% Acrylic
32 Review
Bernat Pipsqueak Yarn, 3.5 Oz, Gauge 5 Bulky, Candy Girl
22 Review
Bernat Alize Blanket-EZ Yarn, Bright Blue
22 Review
Crochet & Knit Starter Kit - Inscraft 52 Acrylic Yarn Skeins, 2 Hooks, Needles, Stitch Markers & More!
32 Review