Hello
Here is a little DIY-Kit for your own "The Monster Book of Monsters". You can print the eyes and the upper/lower jaw and glue it on a box or book you want. If you get yourself some fur your monster book comes out quite nice.
Fot the eyes there are two different parts:
One has eyes included so you just have to paint them. The other one has just empty eyesockets so you can add some eyes from a teddy bear (looks cooler, but you have to grind them so they fit),
As a box i used this:
https://www.buecher.de/shop/boxen/buchbox-gross-motiv-nostalgie-fahrrad//products_products/detail/prod_id/58134071/
The author marked this model as their own original creation.