I designed some raising stairs, a platform and a bookcase to make use of the dead space above the existing stairs in my flat. The stairs raise up when the ‘t in use with the help of a pump like you get in an office chair.
Thermoelectric Fan Powered by a Candle Better writeup than many. Looks good due to heatsink used. A Thermoelectric generator powered by a tealight. It started as an experiment of how much power I could get from one candle. But I liked the idea and it wo