RewriteEngine On
RewriteCond %{REQUEST_FILENAME} .*jpg$|.*gif$|.*png$ [NC]
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !errr-online\.com [NC]
RewriteCond %{HTTP_REFERER} !legalracing\.com [NC]
RewriteCond %{HTTP_REFERER} !mikeandsummer\.net [NC]
RewriteCond %{HTTP_REFERER} !michaelrice\.org [NC]
RewriteCond %{HTTP_REFERER} !google\. [NC]
RewriteCond %{HTTP_REFERER} !aardvarkwarriorklan\.com [NC]
RewriteCond %{HTTP_REFERER} !awklan\.com [NC]
RewriteCond %{HTTP_REFERER} !search\?q=cache [NC]
RewriteCond %{HTTP_REFERER} !irc-urls\.net  [NC]
RewriteCond %{HTTP_REFERER} !e107\.org [NC]
RewriteCond %{HTTP_REFERER} !forums\.gentoo\.org [NC]
RewriteCond %{HTTP_REFERER} !gentoo\.org [NC]
RewriteCond %{HTTP_REFERER} !ubuntuforums\.org [NC]
RewriteRule (.*) /icon-shot.jpg