SWISS is currently holding a contest celebrating the Holidays that awards a daily winner a SWISS inspired prize. The contest has been in place since 1 December and they’ve already given away free tickets on Swiss within Europe, SWISS Vouchers, Ski Packages, etc.
Here is an example from Day 1 of the Contest:
You can enter the contest each day for a chance to win. All that you need to do is to complete a small puzzle each day, and if you do it successfully, you can enter to win that day’s prize.