What's a wobbler?
Who knows, but this is supposed to be a photo of 3 of them. They look like some kind of paper or cardboard tag with a strap? Maybe you hang it from something and it flops around? This is a give-away item, probably a booth item from a convention. It is to advertise Sonic & Black Knight. You can see the release date on there & the game's title in that specific metallic textured font they used.