"In Australia we got rid of our 1c and 2c coins more than 20 years ago." Their disappearance was a damn nuisance for some. We used to drill a small hole in the

"In Australia we got rid of our 1c and 2c coins more than 20 years ago." Their disappearance was a damn nuisance for some. We used to drill a small hole in the centre of them and solder them onto semiconductor diode leads as heatsinks. At 1 and 2 cents each they were much cheaper than their commercial counterparts. Unlike the US cent both Oz coins were solid copper.