Half a croissant, on a plate, with a sign in front of it saying '50c'
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Outside the bag the box came in.

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Lithium Ion Rocket Thruster

 An ecological launch mechanism
 
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This rocket's first stage thruster is powered by layered lithium ion batteries, all being charged improperly. Once the charge is completely against the manufacturer's recommendation, parallel series of explosions will take place as the batteries are mistreated appropriately. The rocket will then ascend quickly into the sky. The power from this will be immense, and ecological as most of the batteries can be harvested from scooters thrown into the sea, or phones thrown into the rubbish.
—mylodon, Jul 30 2023

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       Maybe some sort of steam cannon would be a better application than a rocket.
—pertinax, Jul 30 2023
   

       Ah yes, the Samsung rocket. The Note 7, right?
—21 Quest, Jul 30 2023
   
      
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