Here are 2 partial shots of what looks like it could be a page from a magazine or possibly a catalog in Japan. You can see various items that are Sonic themed, but you can't really tell what everything is.(notice there's a bit of overlap) What's that yellow thing with the handle on top (Sonic/Amy)? Is it a tote What are the blue squares? The colored tiles are the magnet set from the USA (most likely) The rectangles appear to be phone cases.
The mini characters are keychains & phone charms (look at their 'dangling' poses! See them at JP Keychains 3) What's the pattern on the tie? See the tie at Japan Accessories, it's by Cospa. The mug seems to be an all-blue-hue Green Hill theme? All 4 shirts are seen on JP Clothing, produced by Cospa for TGS 2013. Under the tees you can see what are clearly Dreamcast controllers in pink & black, but why are they here on a page of modern 2013 things? Hopefully individual photos of these things turn up. Info provided by AskLiliumLily