They are Santa’s helpers. 
They ARE Santa.
They even sleep in their holiday sweaters. 
They carry Rudolph on their backs
They match their sweaters to the Christmas tree skirt
Or they wear the Christmas tree skirt
Just trying to be a reindeer…
They spend their time in stockings
And they don’t even seem to mind that their humans dress them in cozy sweaters
Well, most of them. Some of them will do anything to get that itchy Santa sweater off.