A friend of mine requested a pair of smaller shakers with a bottom flange and a midsection for rubber bands so they could maintain a better grip while holding and shaking. So here they are. Two identically shaped shakers are provided in the same file but ONE HAS A SINGLE SHAKER HOLE on top (for pepper) and the other has TWO SHAKER HOLES on top (for salt). If you need to further distinguish the shakers to indicate contents you can wrap different colored decorative ribbons or rubber bands around their midsections. The top shaker holes are a bit larger, perhaps by 80 to 100%, than what you might find in most commercially available ceramic shakers due to the design guidelines for the Shapeways ceramic process.
The bottom of each shaker has an approximately one inch diameter hole designed to accept a rubber bung or cork. The #6 red rubber bungs available from this source work very well:http://ceramicsandbeyond.com/estore/index.php?main_page=product_info&cPath=5_65&products_id=286
You can find this type of rubber bung from several online vendors. Other bungs may end up being tighter or looser than this red design. If you happen to have a bung that is too loose you may be able to create a more secure fit using a donut shaped cardboard insert to eliminate the gap between the bung and the bottom of the shaker.