How to make coffee stirrer stars
Created 18 December 2003
Wooden coffee stirrers can be assembled into a nice star, with nothing but their own friction to hold it together. Amaze your friends and beautify your world!
What you will need
If you’re enjoying a cup of coffee in a nice coffee shop, then you already have the two things you will need:
- Five coffee stirrers, and
- About five minutes.
The stirrers I’m talking about here are the wooden ones, reminiscent of popsicle sticks, and just as sturdy, but longer and thinner. Peet’s has them, but maybe Starbuck’s does too. Some places have stingy fragile slats of wood, which can work, but are unsatisfying. Actual popsicle sticks are too short and stiff. The plastic micro-straws are completely unworkable because they are too slippery.
Once you have your five stirrers in hand, you can make a star. It requires a little dexterity to get the sticks to go where you want, and the friction that holds the star together will also work against you as you put the stirrers in place, but it’s worth it. Working flat on a tabletop may help.
As you work, pay close attention to the over and under of the stirrers crossing each other. The star will only hold together if these are right. The basket weave of these crossings is the key to the whole thing.
Here are the steps:
- Start with two sticks angled together to make one point of the star. The exact angle doesn’t matter, because you’ll be able to adjust everything after the star is done.
- Add a third stick crossing the other two. Each of the three stirrers should go over one and under one.
- The fourth stick makes the star shape. Make sure the crossing at the apex is correct: it shouldn’t hold the whole star together yet, though if you grip the star at that crossing, the star will hold.
- The last stirrer is the hardest. I find it easiest to slide it in lengthwise, worming it over and under the first four sticks, easing it into position. Sometimes it helps to hold the star with both hands, and push the fifth stick with your belly, with your fingers guiding its leading tip.
When you are done, the star should be quite secure, with each stirrer positioned firmly against the other four. You should be able to hold the whole star in the air by holding just the end of one stirrer.
If the stirrers are all in the proper positions, but the star doesn’t hold together, make sure the overs and unders are correct. Each stirrer should go over, under, over, under (or vice-versa). The alternating of over and under flexes the stirrer, which applies the pressure on its neighbors, which holds the star together.
The shape of the star will probably be at least a little out of whack. Try to nudge the stirrers into good symmetric alignment. As you adjust, watch out for the ends of the stirrer slipping off each other (the points of the stars opening). The star can survive with one of its points opened, but two open points will be the end of your star.
What next?
Now that you’ve made your star, you can try making fancier ones:
The first two are just like the star described above, but with six and seven stirrers instead of five. These are not that difficult to create, and can even be made by opening up a five-stirrer star to add the other sticks.
The third also has seven stirrers, but uses a different weaving pattern (under, over, over, under, under, over) because the original pattern would require the stirrer to flex too sharply too many times. This one is tough to build, and even tougher to get to look nice, because seven sticks tends to look like a mish-mash instead of a nice symmetric star unless everything is just right.
Other ideas:
- Make stars and leave them on the counter at your coffee shop. I used to do this at one shop, and one day the coffee-meister said, “So you’re the one who’s been doing that!”
- Try another five-minute project: making business card cubes.
- Read my blog, where other similar topics are occasionally discussed.
Colophon
The figures here were created with a PostScript program (stirstar.ps), exported to a high-resolution PNG file, then cropped and re-sampled with the Gimp.
Comments
I have 75 million wood coffee stir sticks...any ideas what to do with them. We made them for a customer and they don't want them....
I would like to buy, or receive a couple of hundred, or even a couple of thousand of the coffee type stir stick. (51/2" x1/4" x1/16"), or so. Please contact me via the e mail address I have posted. thanks, Jim Maynard, lecture demonstrator, UW-Madison
let me c if i can find u illustrations of making 3-D wind mills using 3 x isso. triangles interlocks together.
THANK YOU
At step 3, you have something that is minimal with this property (it's basically equivalent to making something out of 4 rubber bands and two sticks where you have the sticks making the diagonals of a square and the rubber bands making the sides). The last stick adds some extra redundancy to this, which means that you need to bend it to fit it in.
I had no idea these were a hobby.
Regards,
Trent
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