Bicycle-Mounted Banana Suspender





Introduction: Bicycle-Mounted Banana Suspender

About: Artist & Designer // Follow the process on Instagram: @purincess

Bananas in backpacks can lead to a smooshy mess. Bicycle-Mounted Banana Suspenders can save the day!

A collaborative mini group project by Johan Da Silveira, Jonah Ross-Mars, Kate Hartman, and Purin Phanichphant.

Step 1: Gather Materials and Tools

Materials & Tools:

Step 2: Lasercut the Leather

The first thing you need to do is cut the leather to the appropriate size and shape. See the attached file for an example design. This can easily be done by hand. However, if you’d like to add a fancy pattern to it is can also be cut and etched using a lasercutter.

Step 3: 3D Print the Tube Clamps

These 3D printed clamps will allow you to connect to your Banana Suspender to your bicycle tubes. Here's how to make them:


  • Take the diameter of your bike tubes with a caliper.
  • Start your 3D model with your favorite 3D software (we used Autodesk Fusion 360)
  • Use your Jedi skill to design a way to mount an elastic strap onto bike tubes

Or Download and print! (lazy way):

  • For the people have better things to do than modeling things in 3D...
  • We did all the work for you: feel free to download this 3D file, resize it at your convenience and print it! See the attached STL file or if you have Fusion 360, follow this link:
  • Any kind of filament 3D printer (FDM) should work for printing out your part.

Step 4: Assemble the Hammock

    Here's how to assemble the banana hammock:

    • Cut elastic to size (8-10 inches x 3 pieces)
    • Fold the leather over and position your first piece of elastic. Start with one of the lower corners, with the elastic parallel to the edge.
    • On the hole punch tool select the punch that is closest to the diameter of the existing leather holes.
    • Position the punch tool in the leather hole and squeeze firmly to punch the elastic.
    • Insert the longer side of the rivet from below and position on the flat side of the rivet anvil.
    • Position the matching side of the rivet above. Hold in place using the concave side of the rivet setter.
    • Using the mallet, tap firmly two or three time to set the rivet.
    • Inspect your work.
    • Repeat for the remaining holes and elastic straps.

    Step 5: Assemble the Suspender Straps

    These straps are adjustable and made of elastic which means they will give your banana a nice gentle ride.

    For each of the three elastic strap:

    • weave it through the trislide
    • pass it through the slat on the 3D-printed tube clamp
    • double it back through the trislide again

    The trislide will allow you to adjust the Banana Suspender to the specific dimensions of your bicycle frame!

    Step 6: Attach the Banana Suspender to the Bike Frame

    Start with the top tube. Position the 3D printed tube clamp below the tube with the banana hammock hanging below. Use the "O" ring to secure it in place.

    Repeat for the seat tube and the down tube, positioning the clamps on their interior sides. Once all three points are fastened, move the elastic through the triglides to remove any slack in the system and position the banana hammock at the center of the the frame triangle.

    Step 7: Take Your Banana for a Ride!

    • Insert your banana into the hammock
    • Take it for a ride
    • Be safe on the road!

    Bonus: see our design process in this PDF!



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      Please be positive and constructive.




      This is super silly, brilliant, and beautiful.


      Fun idea and cool pictures, although I feel it's a little overkill to use a 3D printer AND a laser cutter. Where are the handtools ? :)

      9 replies

      I'm guessing this was more of I would like to use the 3d printer and laser cutter so let me thing of a silly quick project to experiment with. I have friends that have done so. Which is why my friend gave her colleagues 3d printed animal pins. She was testing print qualities.

      I'll bet some of the Neolithic artisans were complaining about those new
      fangled flint knives when they first came out. "What's wrong with using
      teeth? I like to taste my work!" was the phrase back then. And our children's children will no doubt remember with affection the good old days when we used to make things instead of just thinking them into existence in the virtual world they live in. ;o)

      haha I knew that was coming

      I think Purincess has still got the chance to go old school on the overkill though. I hope he uses a chainsaw to peel the banana.

      Wouldn't you use them if you had them?

      Ah I know I sound petty and jealous. But no, I don't think I would, I really like to feel the material I'm working with. I'm less of a computer person than a down-to-earth crafting person I guess. I mean I can see where those tools enable so much that was inaccessible before and it's wonderful, but at the same time for cutting leather (for instance) I would go with a scalpel any time, I don't know if it's a good thing to computerize everything and forget about what it is you're working with, whether it be animal skin or a dead tree. Maybe I'm too sentimental :)

      All good arguments for sure. I feel the same way when it comes to drawing by hand- I've tried using tablets before as well as the new apple pencil, but nothing compares to holding a real pen and drawing on real paper.

      There's a balance though. When precision matters, there's no substitute for machines.

      Very true. I would say the line between tools and machine-automation is blurring as technology progresses and that using those machines is just not a skill-set I possess (yet!). But with fablabs sprouting everywhere I'm sure i'll find a 3D printer very handy one day for making a specific tiny little piece.

      And you'll agree with me that banana suspending surely needs spacecraft grade precision ;-)

      I get that for sure. I've got the privileged position of having been learning this stuff for many years and it's easy to forget sometimes what a hurdle it can be if you're not familiar with that world. But take it from me, the tools available now by our parent company Autodesk are WAY more intuitive than ever before. Now is a great time to get your feet wet and learn some 2D and 3D computer stuff.

      Yeah, spacecraft grade precision is especially important for bananas because they're so geometrically complex. It's a shame all that work goes into fitting an object that's only going to last about a week!

      what keeps the banana from sliding out?

      funny and practical project

      You gave me a reason to restore my bike. And to grow bananas.

      We did it, boys... we finally did it...

      My dad would LOVE this invention! His daughter loves your twirling banana graphicy-photo-movie thingy.

      i see you brought a banana for scale. everything is so clear.

      Finally, a sanctum for my soft fragile banana. Now where to put my plums?

      1 reply