My First Pile of Shit

I started making a dung heap for Dark Ages/Medieval/Fantasy settlements today.

Basically, until now it is a CD, some Renedra plastic wattle fences, some styrofoam, a foam scourer, used tea leaves from tea bags, and lots of PVA.

I think I need to add some filler and gravel and maybe some bristles from an old brush or something, to get more coarse structure, before adding even more tea leaves of different kinds...

Any suggestions are welcome!