I never had the joy of owning a power miners set. But my brother owned practially all of them and I loved the little rock monsters! I would sometimes use them as bins (trash cans) and call them Bin Monsters!
I own most of the sets myself:D! I actually am going to take them apart soon so I can make one big PM MOC for Brickfair:D!
I wish I was that creative Good Luck
One mod to rule them all and in the darkness ban them - Lord of the Mods "I am the Mod Reborn!" - masterlegobuilders I'm the real boss