A free program for Android, by pixiv Inc..

VRoid is a 3D avatar camera app that allows you to create and customize your own avatar using a variety of customizable face, hair, and body parts.

VRoid is a virtual camera app for creating avatars in the 3D space, allowing you to freely combine face, hair, and body parts and adjust their sizes.

It is also equipped with a facial expression that you can choose among a wide variety of expressions. 

You can take pictures of your avatar and save them in a photo gallery, allowing you to view them later.