At least meat! I modelled that bit of meat from a picture. Checking at the local butcher this would be pork (?). The rest consist of a butcher knife made of plasticard + Duro / Green stuff + a bit of thin cardboard covered with CA glue to make for -well THICK cardboard and some very thin plastic bag too..
And finally mud. I had to cut out the picture because I ddin't think of taking it before adding some extra stuff. Sadly the transparency and layer work just doesn't work on 2D pictures..

Duro meat + knifejba diorama mud