I'm not sure why you would want a small plastic dog attached to your laptop. But if you had one, it would certainly be funny if the dog would hump the side of the laptop. Anytime there is someone with a fleeting humorous thought, there is a Japanese company designing a business plan around producing it.
Although, realistically, I'm gonna bet that only men will find this humping dog funny. Which makes the cuteness of the little dog kind of wierd. According to Vanity Fair, men are inherently funnier than women. Mostly because men enjoy lowbrow humor, which is kind of defined by this product.