I didn’t realize it at the time, but making a spring doorstop keyboard was probably one of my greatest desires as a young child obsessed with those boingy door stoppers. We didn’t even have any of them in my house — playing with them was a rare treat when visiting friends’ and relatives’ houses. Thank you Ali Spagnola […]

Source Kottke: Spring Doorstop Musical Instrument. Booooiinnggg!