I was looking for some obscure Bomberman media on Yahoo and I came across two things
This is a table mat, with EXTREMELY RARE artworks of the characters from Bomberman World that had never been seen in any other type of media than this product
A Super Bomberman 4 themed poster, which also has rare artworks that are not seen in any other type of media (with the exception of the Shirobon I've seen in those card game products)
Unfortunately I don't have the source because these products are no longer for sale, but I know that I saw these products on the Yahoo sales website.