No-entry symbol, designed by AIGA
<a rel="nofollow" class="external text" href="http://www.aiga.org/">AIGA</a>, converted to SVG by Jean-Victor Balin
2012-11-29
Own work  using: <a rel="nofollow" class="external text" href="http://openclipart.org/detail/26637">openclipart.org</a>