Here is a earring with a Celtic fly shape, i designed in several programs. I made the model slightly slanted. I recommend printing them in a slow printspeed. I have painted the earrings after printing.
I have printed this model with white Ultimaker PLA. I have used a 0.2mm layer height and 18% infill. I have used a skirt and my printspeed was 25mm/s. I used a 0.4mm nozzle and my extruder was 210 degrees Celcius.
Raimon of IdeaLab