Let me try to contribute.
I search the forum for it, and didn´t find anything, if is a respost just tell me and delete.
Here it goes.
I got a mace in ZF, that mace have chance to proc a thunderclap and make target get nature damage.
Well my druid has that mace, so no big deal because that work just in druid normal form, never worked in cat or bear form, but i was leveling in plagueland´s fighting mobs in cat and the mace start to proc that enchant, so i test using the bear form and still work.
Dunno if work with player made enchanting, but the random enchant that come in the weapon are working till now, this start to happend after patch 3.0.2.
I will try put a moongose to test if that work to, but as far i tested with the mace of ZF work pretty well.
peace.