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Introducing the Assassin's Water Bottle: A world-first collaboration by Steve Mould and Michael Stevens for those who think & drink. Inspired by the legendary assassin’s teapot, this dual-chambered bottle holds two separate liquids but allows you to pour one at a time. The secret lies in covering one of two air holes with your thumb to deliver the mystery liquid to your unsuspecting guest. Amaze your friends or use it to carry two different drinks in one marvelous container that blends science, math and stealth. These unique pre-orders will close on October 14th 2024.

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For fans of secret compartments and fluid dynamics, The Assassin’s Water Bottle takes the simple act of drinking and turns it into a deadly game of deception.

Fill one side with refreshing water and the other with a different drink – a little surprise for your nemesis perhaps. And with a flick of the wrist, you secretly control which beverage makes it out of the bottle.

The Assassin's Water Bottle features a secure locking mechanism to prevent any accidental spills or untimely revelations. No more embarrassing moments during meetings. Or missions.

And if you ever want to reveal how it works, just remove the sleeve to show the transparent bottle beneath. It’s not totally transparent though. The designs on the bottles and the sleeves are full of hidden curiosities.

Or maybe you just like water and orange juice and you don’t want to have to carry two separate bottles. It works for that too.

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Beginner Assassin

  • Schrödinger’s cat water bottle
  • Unique P3M1 logo sleeve
  • Schrödinger’s cat water bottle
  • Unique P3M1 logo sleeve

$65

PRE-ORDER
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POISON CUP

Custom poison bottle design
3 custom cozies

$89

BUY NOW 

Intermediate Assassin

  • Schrödinger’s cat water bottle
  • Asteroids sleeve
  • Braids sleeve
  • Steve Mould mini poster
  • Unique P3M1 logo sleeve

$85

PRE-ORDER 
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Expert Assassin

The official assassin’s bottle with poison measurements AND the Schrödinger's cat bottle

  • Assassin’s water bottle
  • Schrödinger’s cat water bottle
  • Knight’s Tour sleeve
  • Asteroids sleeve
  • Braids sleeve
  • Unique P3M1 logo sleeve
  • Steve Mould mini poster
  • Michael Stevens mini poster

$159

PRE-ORDER

SIGNED LIFE-SIZED ENGINEERING PRINTS

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Both engineering posters together create the Michael<>Steve chimera with a signature from Steve and Michael. 

$65 each OR $120 for both

PRE-ORDER
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Beginner Assassin

  • Schrödinger’s cat water bottle
  • Unique P3M1 logo sleeve

Schrodinger’s cat water bottle
Unique P3M1 logo sleeve

$65

PRE-ORDER
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INTERMEDIATE ASSASSIN

Schrodinger’s cat water bottle
Asteroids sleeve
Braids sleeve
P3M1 logo sleeve
Steve Mould mini poster

$85

PRE-ORDER

Intermediate Assassin

  • Asteroids sleeve
  • Braids sleeve
  • Steve Mould mini poster
  • Schrödinger’s cat water bottle
  • Unique P3M1 logo sleeve

$85

PRE-ORDER 
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Expert Assassin

The official assassin’s bottle with poison measurements AND the Schrödinger's cat bottle

Assassin’s water bottle
Schrodinger’s cat water bottle
Knight’s Tour sleeve
Asteroids sleeve
Braids sleeve
P3M1 logo sleeve
Steve Mould mini poster
Michael Stevens mini poster

$159

PRE-ORDER

SIGNED LIFE-SIZED ENGINEERING PRINTS

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Both engineering posters together create the Michael<>Steve chimera with a signature from Steve and Michael. 

$65 each OR $120 for both

PRE-ORDER
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BEHIND THE SLEEVES

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BRAIDS

Alexander's Theorem states that all knots can be represented as a closed braid. In other words, any knot, in the mathematical sense, can be arranged into a ring of intertwined threads with no thread reversing direction around the ring. What a beautiful thing to embed on a cylinder!

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KNIGHT'S TOUR

If you place a knight on an empty chess board, it’s possible to visit every square on the board exactly once and end up back where you started, only making legal knight moves. That’s called a knight's tour. It works for an 8x8 grid of squares but it’s not guaranteed for other sizes of board.

KNIGHT'S TOUR

If you place a knight on an empty chess board, it’s possible to visit every square on the board exactly once and end up back where you started, only making legal knight moves. That’s called a knight's tour. It works for an 8x8 grid of squares but it’s not guaranteed for other sizes of board.

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ASTEROIDS

In the classic arcade game Asteroids, when you fly off the left edge of the screen you reappear from the right. In other words, the Asteroids universe is topologically equivalent to a cylinder. So we put it on one.

P3M1 WALLPAPER

There are only 17 different wallpapers. Which is to say, there are only 17 planar symmetry groups. Steve's favorite is the p3m1 group.

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P3M1 WALLPAPER

There are only 17 different wallpapers. Which is to say, there are only 17 planar symmetry groups. My favorite is called the p3m1 group, which is almost what is shown on this logo sleeve.

HISTORY OF THE ASSASSIN'S TEAPOT 

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“The assassin’s teapot just wasn’t portable enough for me. I need to be able to secretly choose between two liquids ON THE GO!”

Steve Mould 
co-creator
 

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“I never considered poisoning anyone until now. Just kidding!! … Or am I?”


Michael Stevens 
co-creator
 

FAQ

When will the bottles be delivered?

We’re working to ship all products in the final weeks of 2024 or early 2025 (it’ll depend on how many we need to make)

What age is this recommended for?

Recomended for all ages!

What type of plastic is the bottle made from?

Our bottles are made from Tritan plastic. It is BPA- and BPS-Free. Tritan plastic is FDA/EFSA-approved for food contact.

How big is the bottle?

900ml (450ml per side) - that’s just over 30oz

Can you use this as an everyday drinking water bottle?

Yes, it's completely functional as a water bottle!

What can I put in the bottle? 

The effect doesn’t work as well with fizzy drinks, the build up of pressure inside is likely to cause issues with the ‘trick’ mechanism. Otherwise, you can use it for any other liquids! I’d use it for wine. You decide.

Can I use this bottle to kill Steve?

No. Only Steve can kill Steve. You may not kill him or anyone else.

Are the images accurate and final?

The design is nearly finalized but there will probably be some minor changes between the exact images you see on the website and the final versions you receive. The functionality of the ‘trick’ and all the Easter eggs in the designs will still be there, and if we see some improvements we’ll add them in.

What is a pre-order? 

A pre-order means we haven’t manufactured the item yet. It’s a bit like crowdfunding. If we get enough orders we can go ahead and manufacture. If we don’t get enough orders then we tried to be creative but it didn’t work and we’ll refund your money and ask for forgiveness.

Why do the signed posters ship separately? 

We need to get the life sized posters to Steve & Michael to autograph which might take more or less time than manufacturing the bottles. We’ll get them to you as soon as possible without risking quantum or real world entanglement.

What else can I do with the bottle? 

Assuming you’re not an assassin, there are other reasons to buy this bottle:

You can carry your expensive electrolyte infused performance enhancing body fuel, and some regular water at the same time

Offer friends red or white wine without swapping bottles

Pour a black coffee and then add milk, as if by magic

Gin and vermouth for your Martini, Mr Bond

Give kids a choice of apple or orange juice from the same bottle

Olive oil on one side and balsamic vinegar on the other for your salad

Do NOT use this to smuggle alcohol into an event. Or do. I’m not your dad.


Made in China in homage to the original Ming Dynasty assassins and their teapots. Patent Pending. 
For any additional questions, please email support@curiositybox.com

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