That was, until I saw this video from TheDungeonMasterG on making "no-trouble rubble."
He makes a pretty small disk to mount the rubble on, but he's working with 28mm minis, I'm working with 1/32 figures. So, CDs it is!
I'm clearly not done yet (painting black and grey/white dry brushing remain), but you can get the idea:
|The wooden "beams" are fireplace matchstick pieces|
I suppose if I was playing a Stalingrad scenario or something and snow was on the ground, these would work as is.
In retrospect, I'm not a huge fan of the round basing for the rubble,but I have a ton of blank CDs I'll never use for anything.