A dreidel spins in the aisle. Santa helps himself to an oxygen mask before assisting his neighbor, an elf. An oversized nutcracker stows his top hat in the overhead bin.

Delta is at it again, with a plan to entertain cramped and harried fliers with a new amusing in-flight safety video. The airline has produced a new holiday-themed video, which will take to the air in the coming months but can already be seen on youtube.com.

These vidoes are serious business, devised to convey vital safety information to fliers. Why the injection of silliness? No doubt, the airlines bring out their fun side in the hope that fliers will actually watch -- and probably as a way to say "happy holidays" to customers during a busy flying season.