K’NEX Guitar Capo (DIY)

Guitar Capo

with K’NEX 

Michael Vogel


Happen to have some K’NEX lying around? Make your own guitar capo with K’NEX.


I’m a big fan of using K’NEX as a building/prototyping tool because it’s just so quick and it works so well for building both simple and complex structures (sorry LEGO fans).


So, if you’re a guitar player and also frugal (aka a cheapskate) like me, save yourself $10-$20 and build a K’NEX guitar capo.










Description Photo
Commercial capo (left) compared to K’NEX capo (right).

K’NEX capo from behind. A napkin around the back prevents any scratching of the guitar neck. 

A rubber band secures the napkin in place.

The capo snaps open/shut using the green peg identified by the arrow in the picture. 

The opposite end of the capo is connected with three consecutive green pegs, creating a more stable structure.


The capo should only be opened from the side with the single peg.

Reverse angle of capo in open position.
The capo “twists” over the guitar neck and the green peg snaps in. 

Note the traditional capo in the photo as a size comparison.

As long as the capo is placed straight, there should be no string buzzing. 

The capo should be mounted such that the side of the capo that snaps shut should line up just behind the capoed fret (this side exerts more force).


The traditional capo shown in some of these photos was actually a gift from a friend of mine who decided it was time I got rid of my “ridiculous” looking capo. 

Although the K’NEX capo may look a little peculiar, I’ve gotten many years of use out of it and it works great.



Michael Vogel
  1. Daniel
    October 7, 2009 at 2:17 am

    It seems that knex is the guitarist’s friend, I made a harmonica rack out of it which works pretty well, have you tried that?

    • October 7, 2009 at 6:31 am

      K’NEX seems to be great for almost anything! I tried making a harmonica rack a few years back, but had less success with it than with the capo. If you have a photo of your k’nex harmonica rack, that’d be great; I’d like to try making it myself.

  2. Abby
    March 13, 2010 at 3:22 pm

    Does the gitaur capo work for acustic???

    • March 17, 2010 at 11:44 am

      Yes, the capo work great for acoustic guitars! In fact, I originally designed it with my acoustic in mind.

  3. March 27, 2010 at 8:37 pm

    This is pro

  4. spycrab
    February 25, 2011 at 5:08 pm

    brilliant! I was looking to buy a capo the other day, but this is just brilliant! 😀

  5. Spectralibra
    April 22, 2011 at 4:37 pm

    Really? Clever use of a building toy, I guess, but… again, really? I somehow doubt any self respecting guitarist would even think of bothering with this. Even your basic capo costs like $3-$4. I can’t imagine anyone who owns a guitar is that hard up for cash that they have to steal their kid brother’s toys to build a capo, presuming it performs half as well as an actual one. I’m all for improvising, but surely a pen or pencil and some rubberbands would do the trick and look far less atrocious if you were in a pinch. Let’s face it, it doesn’t always pay to be a cheapskate, as you so proudly self proclaim. Here’s a tip… instead of spending the time building, photographing, describing and posting this abomination, get a part time job and buy yourself a capo. Lordy!

    • April 8, 2012 at 12:15 pm

      You’re fooling yourself if you think a capo is $3-4. A good Kyser will run you $18-20.

      Having said that, I suggest not knocking this person’s use of their creativity. He took the time to “MacGyver” himself a capo and should be commended. 🙂 Take a look at the rest of the comments on this page…you’re in the minority. The rest of the commenters have marveled at the man’s imagination, and not only that, but his invention and self-promotion of it, has encouraged others to make their own. All considered, this man has 1) had fun, 2) used his imagination (a vital task for a healthy and long-lasting intellect), and 3) encouraged and inspired others to discover their own talents and skills. Hardly a waste of time *or* effort! 🙂

      Besides, even if this looks a little silly on the neck of a guitar (which I will agree with), there is nothing wrong with that, either. There are far too many boring, staid conformists in the musical realm, so ANYTHING that one can do to stick out, deviate, and subvert the dominant paradigm is a very good career move. Victory and success belong to those who dare to dream, and dare to deviate. For crying out loud, Devo wore red plant pots on their heads, and (shock) they MADE MONEY and were successful. I’m kinda “weird” with my music as well…using self-made props, self-made lighted signs, and self-made statues as part of my stage presentation.

      Yes, some people can’t hang with it, and some people laugh…but the plus is, 1) I laugh too, and 2) people remember the performance, even months later.

      Even though I boycott Walmart as the reprehensible, union-hating, low-wage mega-corporation that it is, I do very much agree with Sam Walton’s words: “Capital isn’t scarce, vision is.”

      This man who developed the K’Nex capo has vision a’plenty. And, if you cannot celebrate his achievement, then get out of the way and allow me and *every* other commenter on this page do so, instead. 🙂 Have a nice day, and, just for today even…let your imagination free and let it guide you. I hope the result pleasantly surprises you! 🙂 🙂 🙂

  6. caitlin stone
    June 14, 2011 at 1:21 pm

    i like it, is funkayy and retro 🙂 keep on using the kinex one just to be individual and different.
    Conformity is the jailor of freedom and the enemy of growth.
    that makes me sound like a weird reformed hippie christian or somthing!
    i’m not, im a nice person sometimes.

  7. SG
    March 21, 2012 at 6:22 pm

    Beautiful! Thanks! I am just learning to play guitar and have been looking up chords for some old folk songs I’d like to sing and finding some use a capo. Haha and my daughter’s grown and moved out but her K’NEX are still in the closet… Oh, this is gonna be fun :DD

  8. Louise Flannery
    June 22, 2014 at 6:22 pm

    Fantastic idea. I go through a Kyser about once every year or two with my 12 string. I’m going toy shopping and look for this. It does look funky but it looks like a worthy project. Thanks!!!

    • June 23, 2014 at 6:37 am

      You’re welcome – send me a picture when you’re done & I’ll post it on the site!

  1. September 18, 2009 at 4:47 pm

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