Christmas Jumper Day: The best efforts from around the internet
Samantha Cameron donned festive knitwear today as schoolchildren from across the country exchanged Christmas jumpers in 10 Downing Street.
The Prime Minister's wife joined more than 40 youngsters as they swapped the winter woollies they had designed for Save the Children's Christmas Jumper Day.
Save the Children is encouraging people to wear Christmas jumpers today and donate £2 to help vulnerable youngsters in the UK and abroad.
On Friday morning, hashtags relating to Christmas Jumper Day were the top three trending topics on Twitter in Britain.
Keen Instagram users saw a stream of selfies from their friends and celebrities getting in on the craze.
And Sainsbury's said they were enjoying their best ever Christmas jumper sales figures.
Conservative MP Richard Graham tweeted a picture of his contribution:
And fans of the ITV News Facebook page were quick to show off their attempts:
To donate #2 to Save the Children text JUMPER to 70050.