HTML-formatted combined flair for all SE sites, including area51, running on Google App Engine.
http://se-flair.appspot.com/[association id]/topn suffix to set the number of specific site icons shown to a value of n in the range 1–8:http://se-flair.appspot.com/[association id]/top[n]/http://se-flair.appspot.com/[site host name]/[user id]/http://se-flair.appspot.com/math.stackexchange.com/72/ returns iframe:<iframe scrolling="no" style="border: 0; height: 58px; width: 208px; overflow: hidden;"
src="http://se-flair.appspot.com/[association id]/"></iframe><iframe scrolling="no" style="border: 0; height: 58px; width: 208px; overflow: hidden;"
src="http://se-flair.appspot.com/ed3135bb-6f1d-487b-9930-85a7eb3a675b/"></iframe> produces:
<script type="text/javascript" src="http://se-flair.appspot.com/js/[association id]/"></script><script type="text/javascript" src="http://se-flair.appspot.com/js/ed3135bb-6f1d-487b-9930-85a7eb3a675b/"></script> produces:favicon.ico from the famfamfam silk icon set