Not for everyone but made me chuckle so thought i'd post it as its quite nice and Christmassy and the little ones (and big ones) will love seeing Reindeers dancing in their own house/garden, etc.
Download the FXGuru app where their is lots of special effect videos to make on your mobile - some you have to pay but lots of free ones too including the dancing reindeer one! Very simple to use - just line up the coloured lines and press record - the app does the rest!
Here's the ITunes link: https://itunes.apple.com/gb/app/fxguru-movie-fx-director/id553674737?mt=8
And here's a sample of the dancing reindeers i have just made using it! https://www.youtube.com/watch?v=w1RhxNJIIwg