Can you add a green to the votes to random questions on the whole questions list which are accepted by owner and add a checkmark on the accepted answer of question?
On the questions page:
On 2nd accepted question from questions page:
The accepted answer bumps to the top of the answers list unless it is the question asker's own answer, by ...
You can do this as a userscript:
// @name Faces
// @version 1.0
// @description http://stackapps.com/questions/6296/replacing-identicons-with-face-like-avatars
// @author Normal Human
// @match *://*.stackexchange.com/*
// @match *://*.stackoverflow.com/*
// @match *://*.mathoverflow.net/*
// @match ...