Note: I'm not trying to promote censorship of content or freedom of speech. This effect was created with the intent of artistic use. You can use it however you want.
With this pack you can add a mosaic pixelization effect to any of your meshes as well as partial cover meshes with proxies. For example you can attach a proxy mesh to a head bone socket to obscure a character's face only.
This pack contains 5 different materials. 3 Post process materials and 2 surface materials. They all achieve a pixelization result(except for 1 blur material) but there are a few differences in use case and/or options between the materials.