Hack involves decapitating a Beethoven bust, inserting a red switch, inserting electrical components, and reattaching the bust’s head with a hinge. The only downside is that there’s no Batcave in the 1960s-era Batman TV series. Hack requires only a few components, hot glue, and some band saw skills, but it seems to be a fairly easy project for beginner hackers. Check out the video, then hit up The New Hobbyist for full instructions and plenty of photos.”]
Source: https://www.csoonline.com/article/2126954/hacker-makes-batman-style-hidden-switch.html