I've recently started a new playthrough of Morrowind, and I'm using a couple mods:
-Both expansions and all the official plugins
-Morrowind Code patch 1.9
-Unofficial Morrowind Patch 1.6.3b
-Morrowind Comes Alive 6.1 (with MCA Guard patch)
-Westly's Master Head Pack

The first issue I'm having is with the Ebony Armor. It seems the the Ebony Cuirass, and possibly other pieces of ebony armor have a strange blue glow around certain parts of the armor. The cuirass isn't enchanted, and it looks really odd:
http://imageshack.us/photo/my-images/838/screenshot0zu.png/
http://imageshack.us/photo/my-images/13/screenshot5bx.png/

The second issue is that some NPCs added by MCA are carrying some really weird items, and I'm not sure if it's supposed to be intentional. Two of the items are named "wig" and "mask", and they both do what their name would suggests. However, the third item I've seen is titled "ignore this", and seems to be an armor piece.
http://imageshack.us/photo/my-images/11/screenshot4px.png/

If anyone can help with the Ebony Armor issue, or can tell me if the items I'm seeing are a glitch or are supposed to be there, I'd really appreciate it.

To me, although I don't know much about it, the ebony armor appears to have either corrupted textures, or the textures aren't directed properly, or they are just bad textures. I recommend you download a retexture, such as darknuts, and see if that fixes it. The glow maps/bump maps may be corrupted, it happened to me before on a set of armor