The phrase "special extras" refers to additional things or benefits that are not normally included, which make something or someone more unique or special.
Sentences with «special extras»
Some of the rooms come with special extras such as a Jacuzzi or a fireplace. (vacationidea.com)
But once I'm using butter, I'm using butter, so special extra tasty high fat butter seems like a fine idea. (bakingadventuresinamessykitchen.com)
Some lucky customers will discover special extras while shopping for signed editions. (goodereader.com)