That's very unexplored territory for me, but I think it should be possible, yes. It will probably only look good/correct if equipped on the same race as the original one though.
The basic way to do this should be the following:
* Figure out the Visual Resource ID of the equipment item. I think the easiest way to do that is by creating a character of that type, click on "Visual Set Indices" under "Base" in the side bar, and copy the strings from the various visuals (next to the "Random Visual 1" etc buttons).
* Duplicate the root template of an existing piece of similar equipment, go to "Equipment Data" under "Item" in the side bar, click on the button with the three dots, and then replace the Visual Resource ID entries for all races there with the one(s) you found before.