In this pre-Christmas reminder to mail early, filmmaker Norman McLaren used an electric vibra-drill to engrave the images on black film, and included the occasional "subliminal" burst of lettering, which he hand-scratched on a few frames.
1949
1933
2009
2002
2010
1982
1975
1999
1953
2018
2021
1996
2017
1964
1990