Here’s a simulation using KnitPicks’s Crayon:
From Rachel and Jaax‘s positive experiences with Crayon, and the fact that it’s machine washable and comes in bright colors, I’ve decided I want to use this yarn. Oh, right, and it’s also dirt cheap. Unfortunately, it only comes in 8 colors. So I did two of the light blue. I felt the red would be too jarring.
The next problem is assessing the amount of yarn. A square 34 inches by 34 inches doesn’t seem horribly large, right—34’s about the circumference of a sweater . . . I guess I’d need 5 balls of the red? I’m completely unsure of how to calculate this. Is there some kind of trick—5.5 (sts per inch) x 34 . . . can I figure that out?