The title thing is really a constraint on the imagination; from an intuitive reluctance to draw a wrinkled old man, it's quite a leap to even think of drawing a wrinkled shaggy dog, and to change a wrinkled old shaggy dog into such a wrinkled cutie.

This is one of my works about pet series, the process of making 3D sculpture is here: https://youtu.be/GUFylVxdNqAThis model is suitable for either hot-melt 3D printing or light-curing 3D printing, and it is recommended that the print size does not exceed 18cm.