one of the video/animation compo entries at revision was raum/zeit by subdream. it displays a lot of three-dimensional fractals and scored the second place. this was one of my favorite entries for that compo, and so here it is:
another fractal based compo entry was electronenmultiplizierer by akronyme analogiker, which is a 4k intro, i.e. an executable of size four kilobytes (that is a very small amount!) which plays something in realtime. you can watch a low-quality recording here: