Worry Eaters and Worry Monsters
I found out about a charity called knitfornowt, which offers patterns for knitted and crocheted creatures with mouths comprised of a zip pocket, for putting worries into. They are for use by Art Therapists, to explore any worries which a child might have. They are quite large, between 12" and 17".
This is my first- I had a lot of fun making it.They are in demand so volunteer knitters/crocheters, do have a go at making your own.
https://www.knitfornowt.org/