More than one of the same item in D/P

[RudolphMilotic]

Does someone know if there is more than one of the following items in D/P?:
-Spirit World Cloth
-Eerie Patch
-Light Stone
-Dark Stone
-Awakening Stone
I heard that the Light and Dark Stones can be adquired via Underground World Wireless mini-games, but I'm not sure about this "gossip".

I ask this because in the Advance Generation, the Up-Grade can only be found 2 times in FireRed/LeafGreen...I want to train many Togekiss, PorygonZ and Erlade (Erureido) without to have to restart my version.

 

[Habunake]

There are two Light Stones, I know one is in the cave with the Lucario guy....

And their are two Awakening Stones.

Don't know about the others, I think only 1 but the Dark Stone probably has another I have'nt found.

 

[Silverishness]

More than likely, you can find multiple of those items in the Shinou underground. I would try there first.