Figured with the frozen state of things, id dig up this old thread and post up a few videos that dad took with his drone a few days ago. Its pretty neat, it is set up to follow him via tracking his phone. The first sled is a 1968 boa ski, that evidently chugged a bit of crud into the carby and thus didn't make it back under its own power, and the second video is his 1963 Polaris sno traveler.
https://drive.google.com/file/d/1NwHPjmpusSriUTt6mCqx_8JR3m66SCvA/view
https://drive.google.com/file/d/1qgKQdV5KqywOps0xlkZKDLQuOhYBRev8/view