Here is a wonderful tin of Sonic cookies.
The box is metal, colored in cocoa-brown and off-white--possibly suggesting the flavor of what's inside. The box has a very nice design to it, and is well laid out, complete with fake 'bolts' in the corners. The Sonic image is original to it (or quite rare) with Sonic resting his chin on the backs of his hands. It's done in a chalk or charcoal like style, giving the box an artsy look.
But what is inside? Were the cookies shaped like Sonic things? It remains to be seen as this is the only photo of this curious food.