I've been working on this really basic pattern for a large shawl/wrap. I can't seem to find it again, but the pattern is essentially K2, YO, K to the end, and repeat for every row. It recommends getting to 130 for kids or 150 for adults, but I just finished my 450 yards out with it. Knowing my oldest daughter would want to twirl around with it anyways, making it a little larger than normal works out for her.
Progress pictures and the finished picture are below. I used Parfait multicolored yarn to achieve the look. I didn't have to use multiple yarns to get the different colors.
Thanks for reading!