Most Holiday Cards are - well - Holiday Cards. I've recevied cards with company history (Ericsson: http://www.ericsson.com/seasonsgreetings), a donation to Second Harvest Food Bank (Cisco), and the Like.
However, this Present put a smile on my face; some remakes of test clips to show how crisp and clear 4K / UltraHD can look. In YouTube, just be sure select settings (click on the gear) and original quality, then pause it while you wait for the download: http://t.co/OUK6hjMv
Hats off to Elemental for a useful, humorous, and engaging Holiday Gift.