Paper, origami, printing in 3D and paper automata

''Sumo Wrestling Game Papercraft'' [source]

''Make Your Own Working Paper Clock'' [source]

''Paper Automata: Four Working Models to Cut Out & Glue Together'' [source]

3D printers (plastic- and paper-based):
''Mcor Technologies of Ardee, Ireland has developed a US$22,000 3D printer that combines an eco-friendly water-based adhesive with standard A4/letter paper to create wood-like three-dimensional models.'' [source, and here]

''Cheap, portable personal 3D printer: the UP!'' [video]

''Researchers at Vienna University of Technology (TU Vienna) have developed a 3D printer models that are smaller, simpler and probably cheaper for the same class 3D printer.
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