It is the Eeyore from Winnie-The-Pooh tale. But really it is Ia-Ia (Иа-Иа) donkey from the russian Winnie-Pooh (Винни Пух) movie
Sorry, the toy it about a year in use, so it is little dirty and scratched on photos.
Diameter 0.25mm Layer 0.2mm
It is a strongly remaked free 3DS-Max file for rendering movies (you can view it on https://3d-modeli.net/4932-oslik-ia-ia.html). I have changed ears, legs, eyes and hair to make thing really printable. The tail is also added. And the donkey can after all stand on it's own legs and don't fall face down.