You would need something like this:
http://cgi.ebay.com/ebaymotors/VANS-ORANGE-AMBER-JDM-LENS-PAINT-SPRAY-RX-8-COROLLA-XA_W0QQcmdZViewItemQQcategoryZ33717QQihZ021QQitemZ 310052509140QQrdZ1QQsspagenameZWDVW

As someone mentioned above, you can buy Krylon paint from Walmart that would have the same effect and would be cheaper. Just spray it on evenly to your liking, then just wetsand and buff to a perfect finish.