The mats, intended for a Christmas village display, will work great as paving when laying out frozen ruins for Frostgrave or terrain for Song of Blades and Heroes. At $10 each after the discount, I picked up the last two on the store shelf. I also grabbed two of these brick and cobblestone road packs, from the same company, for less than $3 each. The cobblestones are sort of setting-agnostic, while the bricks will fit right in with modern scenery for All Things Zombie.
Christmas decor can be a great help to terrain makers. So what other holiday scenery have you found that is easily adaptable to miniatures gaming?