I enjoy making terrain for miniatures games. So far it has mostly been for Epic 40K.
One project was a hill with a dragon skeleton on it. The skeleton is a Ral Partha Dracoliche (the blister pack one, not the expensive box), without the legs. The hill is made from blue insulation foam.
Dragon Hill 1
Dragon Hill 2
Dragon Hill 3
Another project lately has been this hill with cliffs and a winding road. It is made from 4 levels of blue foam.
Cliff Hill 1
Cliff Hill 2
Cliff Hill 3
Cliff Hill 4