Following on from yesterday, it turns out that those rainbow birds did have a little more adventure to go, but not in quite the way I had thought.
I didn't add more to the picture, but I did turn it into a pattern. Which ends up looking like this... in my Redbubble shop...
And the nifty thing is, they're a lovely way to treat yourself and brighten up the winter, rather than being just for any festive season.
Update 22/12/20: The design is now also available on fabric: