From the example in the article where the design tried to draw about a quarter amp of current, you could make evolution work to help you by powering the circuit

From the example in the article where the design tried to draw about a quarter amp of current, you could make evolution work to help you by powering the circuit with a fixed 50 ohm resistor in series with the power supply and letting "nature take its course" WRT getting a reasonable output waveform. Similar tricks in the "output" work for your chair and car examples.