He has two amusement arcades filled with his own interactive machines, "The Under the Pier Show" in Southwold https://www.underthepier.com/ and "Novelty Automation" in central London https://www.novelty-automation.com/
He talks about making some of the machines in his "Secret Life of Components" series on YouTube.
Novelty Automation is one of London's best hidden gems: if you ever have the chance to go and visit I cannot recommend it enough.
There is also a "Secret Life of the Home" interactive exhibit in the London Science Museum, also made by Tim Hunkin: https://www.sciencemuseum.org.uk/learning/secret-life-home-s...