"The Joker Birthday Card," developed by brothers Travis and Nick Peterson, launched on Kickstarter last week to enormous success, receiving over $16,000 for its $7,500 goal in just a few days.

The card, which is 23cm wide and 15.5cm high, is available to buy from online retailer Firebox.com for £9.99. It looks just like an ordinary white greetings card and has 'Happy Birthday' written ...

This story was originally published April 6, 2015. Need a creative birthday prank? Consider giving your loved one a singing birthday card that will never stop playing until either the battery dies ...

This story was originally published April 6, 2015. Need a creative birthday prank? Consider giving your loved one a singing birthday card that will never stop playing until either the battery dies ...