What drink best cleans a penny?
491198
Easy!! we did this in science a while ago, let the pennies soak in pure lemon juice, it works really well.
190651
bleach, otherwise just mountain dew
79345
Salt water. We use to clean rust off metal using kool-aid type mix because of the acid in it. Eats the rust away.
123507
apricot scrub\n\ncheap and it works!
398805
mix salt, vinegar and water together and let the penny soak in it.
419299
baby oil\nrubbing alcohol\nsoap\nlaundry detergent...
426240
Do the one where you have a bunch of pennies and you test which liquid cleans faster. i used that for my science project and got a 100 on both oral presentation and organization.\nif that doesn't help, i've found an amazing site with a bunch of projects:\nhttp://members.ozemail.com.au/~macinnis/scifun/projects.htm\nThis takes a while to load but it's definitely worth it!\n\n\nAlso, here are some others: \nhttp://www.cdli.ca/sciencefairs/intermed.html\nhttp://othello.mech.northwestern.edu/~peshkin/scifair/chias_ideas.html#level2\n\nHope they help!
827508
Vesper. I was looking up some Gin drinks on wiki of all places and came across it.\n\n3 oz Gordon's Gin (I'd use Bombay Sapphire, myself.)\n1 oz Vodka\n1/2 oz Kina Lillet
153671
Well it might look a little prejudicial cause a penny is pretty worthless plus it's brown.  How about a quarter, then you can call someone who cares.\n\nAnd thanks for the two points.
478509
Powder + Water + Rag = Clean Coins
962294
Hot:  Coffee or tea.\nCold:  Iced tea or lemonade.\nAlcoholic:  Wine or Margarita on the rocks no salt....or maybe Rum & coke.....hmmm, depends on my mood.  ☺
857742
Any acid.  Vinegar is the best probably.
914313
(m)\n\nsprinkle bicarbonate of soda in your car leave for a few hours and vacuum. the bicarbonate of soda will absorb the bad odder, this is also very good for trainers, fridges etc.
915327
Penny, the Forgotten Coin
751283
Karat Juice (like 24 Karat)\n\nMellow Geolo (the name "gold" comes from the Old English word geolo (yellow))
602979
water and vinegar douche, buy the one in the store and empty it out and mix luke warm water and vinegar to together and surprise surprise up goes the water and voila clean privates
385723
Pennies from 1980/81 and before are already pure copper, so no work would be necessary, other than cleaning them.  New pennies are copper-plated zinc.  A simple way to extract the copper is to make a gash in the side of the penny, then drop the penny in some hydrocholoric acid.  The HCL will react with the zinc to form zinc chloride (expelling hydrogen gas), but will not react with the copper.  This will leave you with a thin copper shell (FYI, this is a common high school/general chemistry experiment).  It is actually a fairly cool experiment.