wood cleaning products
"
http://www.scottsliquidgold.com/scotts-liquid-gold/
urine
"Liquid Gold: The Lore and Logic of Using Urine to Grow Plants tells you how urine—which contains most of the nutrients in domestic wastewater and usually carries no disease risk—can be utilized as a resource"
http://www.liquidgoldbook.com/
a UK disco Band
" Two of the "disco-era's" biggest hits came from a group that never appeared in America. The U.K. based Liquid Gold "
http://www.discomuseum.com/EllieHope.html
Colostrum
"Colostrum is so important that it is sometimes called "liquid gold." All mammals produce colostrum. It is the thick, yellowish, first milk produced by the female after parturition. Colostrum is rich in energy, protein, vitamins and minerals. Most importantly, it contains maternal antibodies that help protect the newborn from disease pathogens during the early part of its life. "
http://www.sheepandgoat.com/articles/colostrum.html
oil most commonly olive oil but not just limited to vegitable oils
"This time it’s all about something once described by the epic poet Homer as “liquid gold.”
Over the last decade, olive oil production in California has increased by nearly 170 percent,"
http://www.northbaybiz.com/index.php?option=com_content&task=view&id=3777&Itemid=172
well it looks clear that that this question does not follow posting rules of having only one right answer