This is my second entry for the 3D ornament contest. I also created this to raise money for my school's Science Olympiad program. This design is non-commercial share alike, however it may be used for charitable purposes. I'd recommend printing with PLA with the extruder set to 230C the print bed at 30C, extrusion speed at 80mms traveling at 155mms. You should use 3 shells, .22mm-.25mm layers, and 10%-20% infill depending on how fast you want to print it. Make sure to check out my other entry for this contest as well.
--- Have a happy science filled holiday season!---