Have you met "Elf on the Shelf" yet? My niece and nephew have Tiny the Elf visit them starting at Thanksgiving and he stays through Christmas. Please see the real life Tiny:
He looks like he is up to no good at all times with his shifty eyes. Tiny walks about the house when the kids are sleeping and settles into a new position before Mason and Emme wake up each morning. And Mason LOVES it. He actually wakes up early just to see where Tiny is chilling. And every night, Tiny reports to Santa whether the kids have been good or bad. Brilliant. And so fun. If the kiddos in your life don't have a "Tiny" in their life, make it happen. It's super dee duper worth it!