Half a croissant, on a plate, with a sign in front of it saying '50c'
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Forebeach

A sloped net that mimics a beach
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This would be like a shark net but more horizontal the top would stick out of the water at high tide and the slope would mirror that of the beach.

Net result is that all the plastic bits would settle out on the netting before it reaches the beach.

Leave it for a few months, then haul it in, melt it down and make more nets.

bigsleep, Dec 21 2019

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       How big is the mesh ?
8th of 7, Dec 21 2019
  

       //How big is the mesh ?//   

       Tricky question. Something about 10cm square, but thinking about it this is mainly a tangle net so not every vertex needs attaching. Larger fish could wriggle free leaving just sharks, plastic and turtles.
bigsleep, Dec 22 2019
  

       I thought this was a new programming control structure, like foreach
theircompetitor, Dec 22 2019
  

       // leaving just sharks, plastic and turtles. //   

       ... and you, when the eco-fascists hang you out to dry on it at low tide ...   

       Will there be a webcam ...?
8th of 7, Dec 22 2019
  

       A Sierpinski sieve would scope the scale ranges.
wjt, Dec 23 2019
  
      
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