Artificial Killing Machine is an installation by Jonathan Moore in 2015 that shoots toy guns every time a death occurs due to US Drone strikes.
Can't Help Myself is a physical computing installation featuring a robotic arm programmed to endlessly scrape red fluid to stay within a programmed area by Sun Yuan and Peng Yu in 2016.
Wake Up Machine by Simone Giertz is an Arduino powered alarm clock that slaps the user awake using a rubber arm.