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Topic: Props for Joker Costume  (Read 1084 times)
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« on: September 22, 2013 12:06:11 AM »

I recently completed a matching set of props for a Joker costume that I'm putting together. They are a *prop* sword cane and something that I don't know the proper name for. I've been calling it "extendopunch", but it's something that I'm sure we all remember from countless looney tunes Smiley

Here's a video of the items in action:
extendopunch: http://youtu.be/PA_oYJlvJZM

cane: http://youtu.be/f6yXlMDzUMk

Starting off, I'll give some info for any crazy folks out there inclined to build a extendopunch gadget. It's a crisscrossed scissors mechanisim with a punching glove on the end. Fairly basic, but there's a couple tricks to building it sturdily and *relatively* safely. Huge disclaimer here. There's aspects to this thing that could hurt your fingers if they get caught between the moving pieces (speaking from personal experience Wink

One of the first things is to create long handles that extend beyond the width of the mechanism when it's closed. This way, when you retract it, it doesn't slam down on your hands.

To make it sturdy, you'll want to alternate between single bars of metal and double bars that sandwich the singles as shown in this closeup. I used 1/8" thick by 3/4" wide aluminum barstock held together by 1/4" bolts with locknuts, all of which can be found at Lowes or other major hardware stores.

Just for fun, and because this is for the Joker, I decided to add a silly face on the business end of the device!

I won't be giving any info on how to build the cane (sorry!) as it's actually something that could, potentially, get you into serious, SERIOUS trouble if you build it outside of compliance with your local laws and then carry it around where you live. Secondly, it could potentially be built in a very dangerous fashion. I have to stress that this is a prop only and is completely blunt with no sharp surfaces whatsoever.

All of that being said, a basic description is that there is a light-weight spring mechanism inside the cane that will lock into the closed position when the tip of the cane is pressed against the ground. Then, by pressing on a button hidden underneath the cloth grip on the handle, it releases the mechanism and reveals the 13 inch fake blade.

And, of course, as this is for the Joker it's all topped off with a splash of color Wink I thought purple worked nicely

the items in the "closed" position

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« Reply #1 on: September 22, 2013 04:13:13 AM »

These are really cool! Thanks for being sensible enough not to share making of cane too!

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« Reply #2 on: September 22, 2013 05:00:06 AM »

Wow!  I was not expecting the mechanism for the extendopunch to have so much power, so I was surprised when I checked out the video.  Impressive!

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« Reply #3 on: September 22, 2013 08:03:04 AM »

Props on the props! Esp. love the extendopunch. Perfect accessory!

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« Reply #4 on: September 22, 2013 08:21:20 AM »

Wow, those are amazing!  You are quite the prop master.  Thanks for adding video, too.  It was quite impressive to see them in action, both worked much more smoothly than I would have expected.  So cool!!!

Is your Joker costume for Halloween, or do you also do conventions?
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« Reply #5 on: October 15, 2013 06:01:57 AM »

Oooh! I can't wait to see your finished costume! Please come back & post photos! I bet it's epic!  Wink

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