I finished winding my skeins of koolaid-dyed yarn into skeins. Here's a picture of the grape/lemon-lime/blue raspberry lemonade yarn in a hank:
The yarn took the dye better than I thought it would, being that it is a superwash yarn with 25% nylon. I think I like the red/orange/yellow/pink skein better, but I guess I'll have to wait and see how this one knits up. It still has potential to be cool. Here's a picture of both hanks of yarn wound into center-pull balls:
I'm really, really pleased with the yarn ball winder I got from knitpicks.com.