Although it is neither the first nor the last conversion of a Famicom/NES to becoming a portable console, this one has the peculiarity that its design is a hybrid between a Game Boy and a Walkman ...

So, if you still have an old childhood Walkman lying around your attic, it may be worth more than you think. Here's how to know what the potential value might be. Read more: 12 Smart Gadgets You ...