Here are 3 rectangular items.
And this is why the page is named 'random Sonic items'...they sure are items but they're random enough that...who knows what they are? Little note books? A manual? A mini guide? How big are they? The middle one looks like it could be a pamphlet of some kind. Each one says "Sonic the Hedgehog" somewhere on the front.
Do you recognize anything here? Write in if you know what any of these are.