I used the code for my latest "hex" designs on a sphere: The result is a complex shape that still prints nicely with no supports on a FFF style machine. It's just under 6" across.

As designed, the hole in the base will fit a votive candle: I wouldn't put a real votive in there, but LED votives work well. It will also lay flat on this base without rolling around.

It also looks good as a large ornament on your Christmas tree :)

The image with the vase under it is a combination with my HexVase 04 print.

Printed on Makerbot Replicator (1) with these settings sliced in Makerware:

• "Natural" PLA extruded @ 230 deg on a removable lexan sheet.
• HBP Off.
• 2 shells, 10% infill, 200 micron.
• 11h, 45m.
• No supports. Note that there is a bit of stringing and overhang towards the top of the print, but since it's on the inside of the print it's not that noticeable.

For the illumination hardware, I purchased a "snap-in candelabra base socket" from Home Depot (picture included), and a 45w candelabra bulb: Note that the bulb hot, but as of yet I've not had any issues since the print itself is so open. If you want something more decorative, I'd go 25w.