My fun design is Superman logo out of  military coffin and batman miscellaneous toy containers.It represents  end of the Down of Justice movie when Superman comes to alive after death to  continue to rescue living things.I used multicolored filaments to get real sense.Glue is needed to get a whole and some parts need supports.Instead of support soluble filament is best choice.But I made this design with only supports.Setting can be normal except flexible filament.With my Flashforge Dreamer printer ,spring can be produced using flexible filament but speed should be as low as 40 ,infill 70% and temperature is 200.