From video description:
This is a close-up of my figures-in-jello-printing 3d-printer hack. Content of the shot glasses is jello (duh), printing fluid is a mixture of banana liquor, food colouring and starch to make it less viscose. Printer is made out of old cdrom drives
Source files:
http://spritesmods.com/jello3dprinter/jellopr.tgz
Buildlog:
http://spritesmods.com/?art=jello3dprinter