Give someone the chance to feel like a genius from ancient Greece with the Project Genius Grecian Trick Lock Puzzle.

Inspired by the clever designs of Theodorus of Samos, this puzzle brings back one of history’s most secure locking mechanisms in a brain-teasing form.

It’s a great pick for anyone who loves solving things that look simple but aren’t!

You’ll receive a beautifully crafted lock and key, but turning the key won’t be enough...

This trick lock is full of surprises, and it’s up to the puzzler to work out what’s really going on inside! 

Great for ages 8 and up, this is a fun way to give someone a puzzle with a twist of history.

It looks great on display, feels nice in the hand, and delivers a satisfying challenge that doesn’t rely on screens or instructions.

  • Based on the original Greek warded lock design  
  • Includes metal lock and key with hidden trick  
  • Suitable for ages 8 and up with a 3/5 difficulty level  

Wrap one up for the curious mind in your life - it’s a clever gift that’s sure to get them thinking.

Peter and Anne-Maree
Hello from Peter & Anne-Maree

CoolThings Australia is a Australian family owned & operated small business located in Launceston, Tasmania.

The CoolThings Australia mission is to help you be the coolest gift giver in your family and circle of friends.

You know the feeling you get when you give a gift and the response is "That's so cool!" - that is what its all about!

CoolThings Australia was started in 2003 by Peter and Anne-Maree and is still led by them to this day. Their purpose in business is to be givers themselves and they support multiple charities and organisations close to their hearts locally, nationally and internationally.

Both Peter and Anne-Maree and their team of cool gift-o-l-o-gists thankyou for your support and are looking forward to serving you today!

Project Genius Grecian Trick Lock Puzzle Reviews

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(5) Emilie - Verified Customer

This past year, I have slowly purchased items from CoolThings - your robot cat, robot penguin, origami sets of cat and dog, two girls' crossbody bags to color, Kidz Labs Bubble Science, the coloured cube puzzle, 3 packs of the Astronaut Ice -Cream, and today, the Color and Learn Butterfly Pillowcase. I was SO HAPPY to discover "CoolThings&...

(5) Sarah - Verified Customer

I had trouble at the checkout with Paypal not loading. I emailed Coolthings and received a lightening quick reply! They processed the order and sent me a Paypal link - problem solved! I have already received my very cool order. Thankyou Coolthings!...

(5) Sharin Voss - Verified Customer

Product awesome materials, fast delivery and good service. Will recommend ...

(5) Allan Hausfeld - Verified Customer

I have now purchased a few coolthings !, Very good products, excellent to deal with. Thank you very much ...

(5) Kat - Verified Customer

Awesome range of products (perfect for our yearly holiday quiz prizes), very easy to order, great communication and fast delivery. Highly recommend ordering from Cool Things!!...

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Unique products, fast delivery, great price and hassle free experience. Will shop with this company again. Thanks for the cool things ...

(5) Kim - Verified Customer

I only ordered my little Red Baron Snoopy yesterday and it arrived today! Unbelievable service. Will definitely be using again and again. Thanks for such amazing service ...

(5) Rhonda - Verified Customer

Ordered the freeze dried icecream and could not resist trying it out. Delicious. I appreciate the timeliness of my order delivery and have found this company easy to deal with and communicate with....

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