BBC Children in Need is joining forces with The Royal Mint and HM Treasury to hunt down the millions of old £1 coins across the UK.
The nationwide campaign launched yesterday and is challenging the country to join Pudsey in searching for the remaining round £1 coins and donating to BBC Children in Need.
Exchequer Secretary to the Treasury, Andrew Jones, MP for Harrogate and Knaresborough said: "Over the last few months, we have urged the public to spend, bank or donate their round pounds ahead of the October 15 deadline. We are delighted to partner with BBC Children in Need, and are encouraging everyone who can, to promise their round pounds to Pudsey.
BBC Children in Need currently support over 2,400 projects in communities across the UK that are helping children and young people facing a range of disadvantages, such as living in poverty, being disabled or ill, or experiencing distress, neglect or trauma.