During the 1920’s, May Gibbs wrote a series of books: The Gumnut Adventures, featuring amazing (and mildly disturbing) characters such as “Snugglepie and Cuddlepot:”

And Obedelia:

May Gibbs (1877-1969) emigrated to Australia from England with her parents when she was four years old. Part of her childhood was spent at a farming homestead in Western Australia where Gibbs’ love of the unique species in the Australian bush developed. The nuts, leaves and flowers she discovered as a child provided a lifetime of inspiration for her iconic and imaginative illustration work.
Children everywhere couldn’t help but wonder when they saw such things, whether Gumnut Babies really did live there, especially when they could actually see their scribbly writing on the trees. Gibbs took what every child could easily find and gave it a fantasy life of its own.
I can’t help but wonder if this series resulted in hordes of very paranoid, frightened children.
You can actually buy the book on Amazon.
Source and more pictures/info.