It has now been confirmed that this set is from McDonald's of France when it did a Sonic & Pucca Happy Meal theme. You can see the kids using the round/spin toy in the ad. What's neat about the ad is it does use a little bit of animation, but that it actually looks pretty good for Sonic & Shadow? You can see the ad at Sonic France McDonalds Youtube. Ad found & mystery solved by Spearmint Pony. 

So what are the things? 2 and 3 are spinning top launchers. The figure on the top is either Sonic, or Shadow and you could battle the tops (like a primitive Beyblade) by launching from the spinner and having them spin at each other. But what's item number 1? It looks like some kind of unweildy pencil crossed with a measuring tool? The back end has Sonic...but there's some kind of red cog-wheel going on as well...what would it do?

If it is a writing item, it'd be difficult to use with that big thing on the end of it. Also, it looks like there's a green square in the Sonic thing? Number 6 seems to be two things together, perhaps some kind of a plastic pencil case and what's clearly a chaos emerald themed key chain. Why is it 2 things in one? Because sometimes if a company decides an item is slightly lackluster, they'll add a 2nd easy one to it, which may be the case here. The emerald is yellow and it's keychain clip is clearly plastic. (So, not advisable to actually use for fear of losing it)
The last 2 items are the Sonic & Shadow spinners you see in the ad up there. Pushing the trigger type button obviously sets these rolling so you'd...roll them at each other? The "Sonic X" Sonic/Shadow rivalry is implied in the ad that the kids were going to duel the toys. You can write in for credit if you know what 1 and 6 are.