I made some links of chain, arranged just so that I could slip a previously printed link over two adjacent links, while they were still being printed. Purists may take exception, but I think it’s kind of cool.
The links were printed with a 0.4mm MakerGear nozzle, using 0.26mm layers. All the ‘extra shells’ settings in Skeinforge->Fill set to 0, the infill turned way down, and lots of cool air..