Wieden+Kennedy creatives, Jason Scott and Joris Philippart, thought that there’s nothing sadder than abandoned Christmas trees; left out on the streets after the season’s festivities are finished.

That’s why, in January 2014, they collected abandoned trees from the local area and chipped the wood outside of Wieden+Kennedy’s Hanbury Street office. They then turned the wood chips into paper at Frogmore Paper Mill and screen printed a simple but eye-catching design on the front.

Finally, they added a classic decorative tree topper, a golden star, to turn last year’s abandoned Christmas trees into this year’s Christmas cards.

For two weeks in December, the agency is turning their office into a shop selling the cards. There’s also a limited amount available at wklondon.com/ChristmasCards. All proceeds from card sales will be donated to TreesForCities.org.