Script Download: SetSPUserPicture.zip
http://gallery.technet.microsoft.com/scriptcenter/Set-PictureUrl-as-default-9e0123ca

This script shows how to Set PictureUrl as default unless another picture is present.

This script will set a default picture for the PictureUrl in a list where all user information are stored .If users don't specify a picture, the default picture will be used.

image image
image

You can find more All-In-One Script Framework script samples at http://aka.ms/onescriptingallery