Make an Amazing Sports Noisemaker!
Intro: Make an Amazing Sports Noisemaker!
Sound off like a Semi! These noisemakers are perfect for sporting events and parties. The effect is similar to the air horn on a semi or a train. Everyone around you will want to know where they can get their own. Or they will move away and give you more room. Either way works for me.
STEP 1: Short Video
STEP 2: Tools Needed
Hot melt glue gun, X-acto knife, Drill press or Drill, Forstner or Spade bits
STEP 3: Materials
Rubber Bands, Latex Balloons, Plastic Plumbing "tee" (from Lowes, Home Depot, Menards, about $2.00), Prescription pill bottles
STEP 4: Prepare Inner and Outer Tubes
You need to make a tube in a tube. We have used many different materials for the tubes, including pvc pipe, film canisters and chapstick tubes. The pill bottles in the illustration are called "20 Dram" and "30 Dram" sizes. If there is a childproof tab, cut it off carefully so the small bottle fits inside the big bottle.
STEP 5: Making Holes
Drill a hole in the bottom of each bottle. The inner tube needs to fit snugly into the outer tube. In our example, the outer bottle used a 1&1/2" Forstner bit and the inner bottle used an 1&1/4" bit. The size of the hole on the inner bottle is not critical. The fit between the inner and outer bottles will be caulked, so you have a little leeway, but in our example they fit like a glove!
STEP 6: One More Hole
Make a smaller hole for the "tee" in the upper 1/2 of the larger outer tubes. Be sure to make your matching holes at the same level if you want the tubes to be even. It will work if they aren't, but it looks nicer when they are even. The example used a 1/2" Forstner bit to fit the tee.
STEP 7: Hot Melt!
Time to start putting it all together. Run a bead of hot melt glue, caulk, or epoxy if you wish, around the seam of the inner and outer tubes. Set the open ends (the tops) down on a flat surface while the glue hardens. You want the inner and outer tops to be level with each other. The bottom can stick out any length, but the tops need to be as close to level as possible.
STEP 8: Add the "tee"
Insert the "tee" into the side hole and run a bead of hot melt glue around it. Do the same thing to the other side and you are almost done.
STEP 9: Add Balloon Diaphragm
Stretch a cut balloon over the top and secure with a rubber band. Pull the balloon as tight as possible for the loudest sound. A looser balloon will give a saxophone like tone. Tune the noisemaker to give a harmonious, resonating tone. The louder the better, of course.
STEP 10: Options
Don't forget, you should customize your horn! Use team colors for your balloons, add stickers, write with a Sharpie and add a lanyard to hang around your neck, allowing your hands free to ring the cowbells I know you brought.
STEP 11: Diagram of Concept
In response to questions about how this works, I have included a cut away diagram. The air enters on the side of the outer tube, travels up under the balloon diaphragm, and out the center tube. You can use this info to make your noisemakers out of other materials.
34 Comments
studes4ever 10 years ago
I just built one of these today. Works great. I am hoping to adapt it to use on an electric bicycle as an air horn similar to the commercially made Airzound. Thanks for the good start to my project.
GRitter 11 years ago
HowTo-Creative 13 years ago
buellboy492 12 years ago
bmohr 13 years ago
OKNUKE 14 years ago
I don't the prescription bottles at home and I doubt anyone will sell them to me empty. Ideas or what other cylindrical objects will work? PVC pipe inside one another?
blodefood 13 years ago
Bobblob 14 years ago
I made a variation of this instruckable and this one
https://www.instructables.com/id/Blow-your-own-air-horn/ out of a toilet paper tube as a proof of concept experiment. The possibilities are endless.
I strengthened the open ends of the toilet paper tube with “caps” cut from the sides of a 1 gallon plastic milk bottle hot glued to each open end as described below.
One end was more like a real cap that was about 1/8“ bigger in diameter than the toilet paper tube opening with a hole cut in the center for a straw to slide in snuggly and the other end was more like a narrow ring that over hung the outside of the toilet paper tube opening about 1/8“ and also over hung the inside and of the toilet paper tube by about 1/8 inch too. A bit like a washer with a large opening in the center. This was the end that got the balloon stretched over it. Both “caps" where firmly hot glued in place.
A hole roughly about 1/4 inch in diameter was cut in the side about half way between both ends of the toilet paper tube and this is where you blow into it.
Stretch the balloon over the “washer” like cap and insert the drinking straw (bigger the better) into the other end touching the balloon “diaphragm”. Adjust the position and pressure of the straw against the balloon while blowing into the hole in the side to get it to work.
The softness of the toilet paper tube muffles the sound but it proves the concept and worked. I await the next empty vitamin/pill/aspirin box to make one for real!
buellboy492 14 years ago
im not miguel 14 years ago
shantinath1000 14 years ago
Excellent ible! I made one last night using your idea and modding it based on what I had in the house. I did have one question - in step 9 you suggest we "tune" the horn. How is that done? The one I made the bottles fit tight but can be slid back and forth to tune it but in yours are they hot glued together or is the glue used to just create a gasket and the bottles can still move? Thanks
buellboy492 14 years ago
shantinath1000 14 years ago
buellboy492 14 years ago
bknow13 14 years ago
buellboy492 14 years ago
bknow13 14 years ago
RetroTechno 14 years ago
I noticed from your video that each half is at a different pitch for that truck-horn sound. Does the amount of tension on the balloon determine the pitch?
buellboy492 14 years ago
3366carlos 14 years ago
awesome, i'm gonna install it in my car and use an old air pump i have.