There is another supplier of small mechanical parts: Small Parts,
Inc.  They are on the web at http://www.smallparts.com/

Also, someone there is one of us!  If you search for these part
numbers: STM-GAV1CD, STM-GAV2CD, and STM-CALCD, they sell CDs of an
89-key Gavioli and a calliope.  Aside from being people of obvious
good taste, (well, maybe not the calliope ;-),  they have a huge
selection of tools, parts and materials.  Well worth looking at.

Bob Meyer, Poway, near San Diego, California, USA

 [ Ah, the calliope is also in good taste!  It's a steam calliope,
 [ designed and built by Dave Morecraft of Peru, Indiana.  The CD
 [ is entitled "The Steamboat Washington Calliope", available at
 [ http://www.aurec.com/calliope.html  -- Robbie