No. Trial coins were struck in 1974 and shown as samples. Supposedly all were melted but rumors persist that a few of the coins were hidden away.
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In 2011, the U.S. Mint produced 4,938,540,000 pennies.
See the related links section for a virtual tour of coin production by The United States Mint.
According to the US mint, 6015.2 million pennies were made in 2012.
From the US Mint, a penny has a mass of 2.500 grams. There are 28.35 grams in an ounce, so (28.35)/(2.500) = 11.34, so 11 pennies is almost an ounce.
There has never been an aluminum dime created by the US mint