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Sometimes it costs more to buy it than to make it from the money itself.


Single-vision glasses to correct myopia, from optician.


Pinhole glasses made from two half-dollar coins, plus a piece of salvaged brass rod.

Tom Parker

Tom Parker

Tom Parker is an author who lives in Ithaca, N.Y., and works for Cornell University. When he is not tinkering with junk, he’s a flight instructor and flies a 1956 Cessna 180 bush plane.