Ana Campos and Paulo Magalhaes (creators of Postcrossing.com) are featured in this hand-made Christmas postcard. The card has the words Happy Holidays and a silver bulb. When you scratched the silver, it revealed the photos!
This very creative postcard was mailed from Germany in 2013.
Germany (Deutschland) stamp 2013
The 200th Anniversary of the Birth of
Ludwig Leichhardt, 1813-1848
Joint Issue with Australia