Damn, Sorry for such a late answer. I don't know why I didn't see this before
@dantzig for Euro 2012, we got the Brazilian edition, the one with the picture
@Makhno posted earlier with exactly the same kind of glitter on the shiny stickers. The packets were with golden borders and purple in the background. Now I see this version was released in other South American countries, except for Argentina, I think.
Same as Euro 2008, the first Euro collection released here was brought from Brazil.
They're shiny and glossy stickers, indeed, but I must say, International stickers made in Italy have got a better print quality. I've got both kind of stickers from Euro 2008, too.