Nifty Nifty Look Whose Fifty
All buttercream icing (frosted cake with light gray) with graham cracker crumbs as dirt. I always add a little cocoa powder to make it darker if I don't have choc graham crackers. I think I saw something like this here so I won't take all the credit for this one. I didn't have enough black to make borders so I mixed my black, gray and white but did not stir it much. Same with tombstone...I added more black color powder to the grey I already had but did not stir in completely to get marbled effect.
Your borders are awesome!! This is a great cake!!