I don't think they will be Ruben... (from my experience) everything I have purchased that was from the Static Skull Collection, via eBay, originated from Japan.
http://jp.oakley.com/store/collections/mens-golf-collection
All of my Skull (Driver & Fairway) Covers for my golf clubs indicated they came from Japan.
Not sure why Oakley doesn't offer this collection on the US site. IMO the Japanese golf collection is more desirable... the fact that you can no longer find a golf glove on the US site, but the Japan site has 4 versions... ???
(If I ever go to Japan, I'm coming back with a new suitcase full of Static Skull Collection items)