Here I show how you can very simply modify a megaphone to accept 1/8" line input from an iPod, and mount the megaphone on top of a motorcycle helmet. The resulting "Mega Helmet" delivers the maximal aural stupidity allowed by law.

Step 1: Get a motorcycle helmet

Get a motorcycle helmet. I picked up this Honda one at a yard sale for $5.
How's that whiplash treatin ya?
<p>This is great, you should publish a video of the project in action.</p>
pimp status
It's really nice. But today I in brandbagsales.com bought a bag. Pretty cheap
All you need is the laser collection sound effect. That is ALL! :D
That is the coolest F**king thing iv'e ever seen
"maximum aural stupidity allow by law" best quote!!!
Sweeeet!! Maybe now I won't get beat up so bad by the cops at Truth rallies!
Take that, Jake and Elwood!!
look at me, im stupid!!
SWEET, I want one!
Imagine riding a motorcycle with this on, annoying the people anywhere nearby
hahahaha! you are my hero i am building one of these TODAY i will let you know how it goes
I just found this and I must say that it is truly awesome. Add a couple beers, a public place and nothing good can come from it, this has so much Jackass potential it is not even funny..........IN SHORT I LOVE IT.
"The blues brothers! One night only" Im liking this.
This sounds great for parties and dorm room hi jinks, but don't wear this helmet while riding. It'll snap your neck in a fall. Also, the second incarnation has holes drilled into the helmet shell for brackets. The integrity of the helmet is now severely compromised.
well then just dont fall, he didnt mention ever riding a bike with it just playing soft ball with it. I wish i had a megaphone, this thing could be so much fun!
and what's the sue of this? I mean, if u'r gonna ride a bike while talking, noone will hear u. if u'r running, same thing, and the megaphone was made to stay the same.
what are you talking about? of course people can hear you. thats the POINT of the contraption
how is this feature only now? It's been FOUR YEARS. So worth it...
Hey this is just what I need to night hunt with. I could hook up wild pig/other MP3 sounds and hunt with a 3MM/candle light power red lens spot light mounted on my scope, Generation 3 night vision glasses. This is the perfect red neck Christmas present.
Lol you should get a motorcycle and while driving to your college teams game scream out your team name...
Wonderful. But I think this might increase drag and full consumption a bit!
How much does a mega phone cost?
if your in the uk rapidonline do them for about 50gbp.
he said in another comment that it was $99 in radio shack mite be better looking on ebay tho
Lol, nice idea.
i ride a goped and i think this would be a pretty nifty 'stereo' and redneck cell phone for while im riding. also a good way to persuade the pregnant mother to move her baby carriage off the sidewalk. (just kidding)
redneck cell phone hahaha
I love the last picture :P i would hate to listen to this :D
this is simultaneously the best and second or third to worst idea i ever heard of... :P one of a kind, dude. nice job!
Lol thats awsome
Ha ha ha I want one!!!!
This is amazing.
How much did the megaphone cost?
I know, I'm replying 19 months after you posted. Anyways, they are $99. Here it is from RadioShack's site: <a rel="nofollow" href="http://www.radioshack.com/product/index.jsp?productId=2103828&amp;cp=&amp;sr=1&amp;origkw=powerhorn&amp;kw=powerhorn&amp;parentPage=search">http://www.radioshack.com/product/index.jsp?productId=2103828&amp;cp=&amp;sr=1&amp;origkw=powerhorn&amp;kw=powerhorn&amp;parentPage=search</a><br/>
Why thank you. I have since upgraded this helmet significantly. I gave it a new paint job and added some electroluminescent wire for nighttime pizazz. Most importantly I have improved the way the megaphone is mounted by installing proper metal brackets. Basically I took a couple of 4" L braces, bent them to shape, then drilled holes into the helmet and bolted them on. A couple of big hose clamps from Home Depot were used to secure the megaphone to the brackets. Pix below.
2 basic items turned into one mega super awesome radical groovy super safety and annoyance device! imagine, protect your head, AND have every thing you say amplified!
Interesting idea. It reminds me of my kinetic sculpture I made a few weeks ago where I attached a motor to a persistence of vision LED toy and then mounted that to a golden helmet. I like your helmet but I wish you would have used something other than duct tape to mount it. Sure its handy and durable but its not very aesthetically pleasing. Either way its creative. Keep it up.
hi! yeah, I agree with you that the duct tape is the weakest link here... it's more of a stopgap measure. We got into the playoffs in softball and I needed this thing done fast. Version 2.0 of the Mega Helmet will include proper mounts for the megaphone and a toggle switch for the line input (as it stands you have to unplug the iPod to talk through the microphone). I also got my hands on some battery-powered spinning police lights that I think would look very sharp mounted on the ears.
Toggle switch? Forget that, it's all about doing the PSA's with backing music! I'm going to make a mess of these for Critical Mass :)
Haha, that's the first application I thought of too.
Here's a variation I made with a friend. The difference: I used a 'switching' type mini-jack, which when unused, connects the microphone to the amp, but when the iPod cable is connected, substitutes the mic for the iPod's signal. The operational difference is that either the mic or the iPod can be used, but not both. The benefit to this design is the megaphone is otherwise unaffected with the iPod is not being used. The wiring diagrams show (1) the original wiring (2) the new wiring, schematic, and (3) the new wiring as it looks physically [cheatsheet for the physical soldering]. As mentioned in my comment above, you must combine the L and R + signals from the stereo 1/8" mini plug that goes to the iPod into the single 'tip' + signal that plugs into this new jack. I used an old headphone cable with built-in plug, cut off the earpieces, and did the merge in a mono 1/8" mini plug that I attached at the former-earpiece end.
Note that the wiring from the iPod to the megaphone should tie together the Left and Right + signals from the stereo iPod into the mono microphone + input on the amp.
NEW, from Hollerbach, the ultimate helmet-to-World interface. And hey, itsa Honda! Flip the switch and you can finally retaliate against thoughtless cagers by voicing your concerns and recommendations at a deafening 120+dB. WOW! It hurts just thinking about it! Be sure to add the optional Karaoke package. The Mo-Tard Mike-on-a-Bike only $15.99 at yard sales everywhere. Just add Duct tape and batteries. Mfg. WEDAREU/Jake N. Elwood Industries, LLC Joliet, IL USA (just an idea for when you get version 3.8 ready to market to the wacky bikers out there...keep up the good work, I like the way you think)

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