The great thing about Facebook due groups, (and the internet in general) is the amazing things people find and share in them. I just finished making one of these for the little bun.
(Actually ended up following this tutorial, as I liked the idea of using flannelette for the back)
I’m super happy with how it turned out, what an awesome idea. Extremely labour intensive (by my lazy standards) but the moment it comes out of the dryer is totally magical.