There's a Kickstarter campaign for something called the Joker Birthday Card.

It's a musical card that does not stop playing its annoying "Happy Birthday" song until the battery dies or you break it.

That is the point.

The campaign has already raised nearly $35,000, well above its goal of $7,500.

The card is delivered in safe mode so it can be written in without the song going off. But when it's given to someone, a tab is pulled and the person receiving it is not able to shut the song off.


Source: Free Beer & Hot Wings