Lol, more practically you could get something like this! https://www.amazon.com/Zeus-Dynamo-Powerhouse-Crank-Generator/dp/B0873VKW75/ref=asc_df_B0873VKW75/?tag

Lol, more practically you could get something like this! https://www.amazon.com/Zeus-Dynamo-Powerhouse-Crank-Generator/dp/B0873VKW75/ref=asc_df_B0873VKW75/?tag=hyprod-20&linkCode=df0&hvadid=475858389483&hvpos=&hvnetw=g&hvrand=2158171697674289363&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9031909&hvtargid=pla-1158434116551&psc=1 https://www.amazon.com/Zeus-Dynamo-Powerhouse-Crank-Generato... Or, if you live in a cold climate, you could make a thermo-electric generator vest to wear around town.