The penny currently costs 2.4 cents and the nickel, 11.2 cents, to produce. Chemists discuss how we could wriggle out of this ridiculous situation.
Value of 2009 Presidency Cent
Holy grail' found: Rare penny might be worth $1.7M after it was
History of the Penny - Finest Known
Check your pennies. You could have one worth $200,000
Penny Worth $85,000 - Penny From 1942 Worth $85,000
Coins and Canada - 1 cent 1945 - Proof, Proof-like, Specimen
Wheat Penny Values Charts - HobbyLark
What Is the Value of a 1943 Copper Penny?
Buy Old British Pennies in Bulk (Best Value)
If You Find a Rare 'Doubled Die' Penny, It Could Be Worth $1.14 Million
The Penny Cost More to Make Than It's Worth, Again - WSJ