Well that didn’t take long: I finished the hot water bottle cover in the self-striping yarn and just look at those COLORS:
The details are all linked on the progress post. That free pattern was excellent (it includes two different weights and a calculator for anything else) and the provisional-cast-on-to-kitchener-stitch finishing worked fine.
I love the colors so much I’m currently just leaving it out like another throw pillow.
Maybe I need to get another colorway and knit an actual throw pillow? Those happy stripes are hard to quit.