We’re all familiar with those musical greeting cards. Give the Hallmark store $10, and you have a card with a microcontroller inside that plays one of several songs available. [Jarv] was playing ...

The older someone gets the harder it is to find them the perfect birthday present. So why not just throw in the towel and go the gag gift route instead? This amazing musical card plays Happy Birthday ...

Brothers Travis and Nick Peterson want to revolutionise the world. They plan to do that by driving us all crazy with their Joker birthday card. This truly evil invention won’t stop playing music for ...