What can I use to let users build their own avatar character?
<p>How would you go about providing users with the ability to build a custom avatar character, something like <a href="http://messenger.yahoo.com/features/avatars/" rel="nofollow">Yahoo! Avatars</a>?</p>

<p><strong>EDIT</strong> - Let me be more specific about what Yahoo! Avatars does:<br>
It lets you <em>create</em> an avatar by selecting a face, hair style, eyes, etc.<br>
This is what I'm looking for.</p>

<p>I am interested in:  </p>

<ul>
<li>Libraries, free or paid</li>
<li>Outsourcing to an external website, provided this can be well integrated into our website</li>
<li>Any other suggestions</li>
</ul>
