What you can do is to append ?skin= at the end of your page name to force it to use that given skin, for instance :

Then you can add this code to your selected pages (it's not clean but it will work) :

#if(!$request.skin || $request.skin && $request.skin != 'myskin')

#set($skin = '?skin=myskin')

#set($url = $xwiki.getURL($doc.fullName))

#set($pageurl = $url + $skin)

$response.sendRedirect($pageurl)

#end