Show us your most useless machine

We were fortunate enough to StumbleUpon the most useless machine ever. Delightful! Eclipsed perhaps by the world’s most useless machine copy. We say that because the doll arm looks more realistic which creeps us out in a very entertaining way. So these machines aren’t useless, they provide entertainment.

We, on the other hand, have had some projects that really fell on their faces. With that in mind, show use your most useless machine. Please leave a comment after the beep.



  1. Reinier says:

    Oh. My. God. Geenstijl (the green crown icon, is the main site, is the video site) on HAD. It’s like a weird merger of absolute internet-crap combined with internet-awesomeness, HAD being the latter, obviously.

    Oh and the currently most useless machine in my posession would be my cassette-tape player.

  2. thethirdmoose says:

    The Arduino?

  3. Spork says:

    Those machines are wonderful. I am going to build one soon.

    Thanks Hackaday.

  4. vonskippy says:

    I see what you did here. “Useless Machine” … “Hack a Day”…. Just saying…..

  5. Azur says:

    i don’t know what is this about, i read something about showing your most useless hack….
    so here goes one of my hacks: the infrared hand flashlight
    nice huh?
    i’m about to take pics and a description of another of my hacks to post it here, but nothing yet..
    see ya!

  6. Satiagraha says:

    That is totally awesome

  7. Bryan says:

    Well actually an infrared hand flashlight would be useful if you have a black & white camera or night vision use…

  8. -Q says:

    I like the part where it turns itself off :P

  9. Petyo123 says:

    The blossom of stupidity…

  10. _die says:


  11. vic says:

    The first “Leave me alone box” was built by Claude Shannon, based on one of Marvin Minsky’s ideas. It’s simple to build, really fun, and you fell compelled to have your own.

    My most useless creation was a graphical LCD screen from a Nokia phone showing views of the mandelbrot set while LED flowers flashed all around … When I showed it to my friends they asked “what’s it for ?”. Doing electronics for fun or making stuff without purposes seems hard to understand for some people. I like to call it “art”.

  12. Funny69 says:

    The most useless machine in the world: A unpatched Microsoft Windows Computer.

  13. stunmonkey says:

    “show us your most useless machine”

    Dude, there is no way we can compete with a pro – how are we supposed to top the stuff Caleb Kraft comes up with?

  14. Haku says:


    This one got me giggling even more because, well, look at what the ‘hand’ looks like:

    I’d love to embed one of these useless machines into the desk of a receptionist with a little sign in front of the switch saying “Push switch forward for service.” :D

  15. Zymastorik says:

    “The most useless machine in the world: Any Microsoft Windows Computer.”


  16. Mic says:

    Zymastorik wins! Unanimous. DAmn

  17. xGROMx says:

    Thats Great! Nice conversational piece.

  18. Jleop says:

    I nominate this:
    It is a pneumatically-driven robotic chair-sitting machine, that is broken.

  19. agallop says:

    A can opener which can only open, open cans.

  20. I could have sworn that this has already been covered on hack a day.

  21. Spadefinger says:
  22. therian says:

    relying on my pot head this post already was here

  23. thedudefrommiamivice says:


    Well technically the human body is a biological machine, so wouldn’t Caleb take the top honors himself.

  24. LeftyX says:

    This is an old idea — the “Do Nothing Box”. I had one when I was a kid back in the ’50s, and it was of course all mechanical — AND WE LIKED IT! :-)

  25. Wwhat says:

    Funny, but I think MS might have a patent because it’s a know issue with windows that it can get in a state where it shuts itself off after boot :)

  26. thedudefrommiamivice says:


    Its not an issue, its a feature.

  27. TJ says:

    I think most of the whiners here have a blue-veined junket pump that is useless…

  28. ferdie says:

    i think the iphone/app store
    appel make a greed phone but forget it need a good accu that work loger than 5 a 6 ouhr

  29. ferdie says:
  30. Phil Burgess says:

    Not my own, but the Robotic Bagpipe Player otherwise fully qualifies for this discussion:

  31. Matt Joyce says:

    That’d be my most useless machine to date.

  32. Agent420 says:

    Arthur Ganson’s artwork may fall into this category…

  33. SheeEttin says:

    I once put a lightswitch on a box.
    It wasn’t attached to anything. It was just a lightswitch.
    I’m still not sure what it’s supposed to be.

  34. SuperNIC says:

    @Wwhat LOLZ. Ahahaha.

  35. BUNCH says:

    Thats what i need! :D

  36. someone says:

    in a different point of view “The Most Beautiful Machine” like the idea of Claude E. Shannon

  37. Henk de Vries says:

    Ugh, geenstijl. They’re the dutch ebaums

  38. Ronald Raygun says:

    You know, this might be useful as a doorbell.

  39. Nash Brown says:

    would this be considered self-preservation? lol

  40. Jamie Riddles says:

    Staples Button

    Nuff Said

  41. Gar says:

    the most useless machine i made is a switch i put on a cardboard box that i tell people to flip when they go into my room. It’s only function is to make people say “what does that do?”

  42. WoW says:


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