The mug itself isn't what's silly about this product, nor is it the fact that it's decorated with Erika Sendo of FORTUNE ARTERIAL. What's unusual about this mug is that it has a lid! This just makes me wonder why. It's a ceramic mug, so it'll shatter if you break it and it'll retain heat from your beverages, meaning that it would be a horrible choice for taking drinks on the go. But on the other hand, why would you want a lid on a plain old mug? I think we should move on rather than question this paradox of mug design.
Some character merchandise may be a bit depraved, but at least it makes sense. If a character like Elis or Misaka Mikoto is sexually appealing to otaku, it makes financial sense to appease them by offering dakimakura of the characters. But then there's stuff like this. It's not depraved in the least, but it just makes no sense. Why? Canned bread? And even if you do want to make canned bread, why brand it with The World God Only Knows, of all anime? But wait - it's HONEY-LEMON FLAVORED BREAD. In a can. A TWGOK-can. Yeah.