It appears as a commercial in Švankmajer's feature-length film Little Otik.
A knife chops two slices off a chunk of fresh meat.
The first slice, using a nearby spoon as a hand mirror, admires itself.
The second slice switches on the radio, and persuades its companion to dance 'cheek to cheek' to the sound of an old 1920s recording.
This article related to a short animated film of the 1980s is a stub.