Zamilované maso (Meat Love)
Jan Svankmajer 1989 US/UK/West Germany (1st time; YouTube)
Two lumps of raw meat fall in love.
Brilliant stop-motion animation, colourful, with old-fashioned music; there's nothing like a bit of raw love…love is a butchery?

Et Cetera
Jan Svankmajer 1966 Czechoslovakia (1st time; YouTube)
Three shorts within a short: a primate learns how to fly with four pairs of wings; a human whips an animal into submission three times; a man attempts to draw a house over and over again.
Brilliant, simple animation with a somewhat nightmarish feel; it feels like one of those fever dreams in which humans become tiny 2-D drawings. Thematic similarities with Beckett: the futility of life, as well as some sign of frustration with form: a figure drawing his way to curiosity, and thence to insanity.

Spiel mit Steinen (A Game with Stones)
Jan Svankmajer 1965 Austria 1st time; YouTube
A clock spits out stones every hour, and various patterns are formed.
Visual gags and poetry with the most mundane of all objects, rocks; the patterns get more ambitious and impressive as it goes on, but it could probably be shorter.

Flora
Jan Svankmajer 1989 US (1st time; YouTube)
A bed-ridden "vegetable", or a human comprising vegetables, rots and explodes.
A thirty-second short of such explosive visual power that it will linger for a while, before you want to watch it again. It sounds like a Lynch film, and is horrific to look at, in an attractive sort of way.

Kyvadlo, jáma a nadeje (The Pit, the Pendulum and Hope)
Jan Svankmajer 1989 Czechoslovakia (1st time; YouTube)
Black-and-white images of death and devilry to the sounds of an industrial furnace.
Industrial furnace indeed - if a literal meaning of that phase fails to register, the imagination might define it better. An atmospheric, rather frightening affair which clocks in under two minutes; most feature films fail to reach Svankmajer's level of intensity.