Hello,
Buried Egg here with another Vintage Star Wars collecting video on my YouTube channel. I put together a guide on how to make your own Vintage Death Star Playset Trash Compactor Foam. Is cheap, easy, and very authentic looking! Most of the foam trash pieces that came with those Vintage Death Stars are really 'crumbly' and deteriorated by now. This is a great way to keep the original Vintage foam in a protective bag, but have something authentic looking in the compactor for display or play:
https://www.youtube.com/watch?v=B5XkfH5hhks
Enjoy!