Polystyrene packaging (Penn HP10)

I have lots of white expanded polystyrene sheets of various sizes up to 150 cm by 110 cm and loads of corner and edge strips. Horribly environmentally awful, they came from China, packing furniture as if paper based alternatives do not exist! They would fill my MPV easily for a dump run but does anyone have a use? NB Cannot use as house insulation as inflammable!

       
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