Straight forward script to load a directory of your choice or by recursively going through a single directory (be careful it doesn't go through too many as this will be slow to load) and loading up .mat files.
From here the script will apply Materials only (no maps) to teapots.
I use this to quickly populate the scene with all materials inside a .mat file to tweak and update it quicker.
Can be found under the category: 3dwannab
Open script and change:
local intialMLPath = "F:\SS_3diT\Textures & Materials\Corona"
to your own user library of your choice.