So without further ado, I present Russ' terrain pieces.
They are constructed from gum balls (link) from the American sweetgum trees which are common in the southern US. Russ cut them into various size pieces and glued them to a hardboard base with appropriate ground cover. The paint job really glows and ensures one knows that these are some sort of alien growth. The two 28mm space marine figures give a sense of the size of the gum balls.
Hope you enjoy the results.