In this final #12daysoftel we have a bit of fun using Elf Yourself. elfyourself.com Using this web page you can easily upload photos and transform yourself and friends/family/colleagues (with their permission) into a dancing elf.
No need to purchase and download it - just ensure you click to get a shareable link
Another colleague has mentioned https://reindeerready.co.uk/ where you can capture the magical moment the reindeer visits your home.