When the mood strikes me to make something in the way of fantasy terrain, and I can't figure out something specific to do, it is an easy choice to carve up a few standing stones, monuments or forgotten altars (blood-stained perhaps...).
|Standing stone and forgotten altar miscellany|
These take virtually no time at all, and consist of a little bit of knife-carved foam coated with a darker gray undercoat and a light gray sponging overtop. Throw in a little dark green or light green weathering for a change of pace. Easy Peasy.