Bob Streicher used to make these, and he may still be making them. His
phone number is 570-559-7403.  As I recall, he used to freeze the
rubber blocks before drilling them.

Randolph Herr

 [ The word was that Bob Streicher was retiring.  But it is worth a
 [ phone call to him to find out.  See the MMD Subject Archives under
 [ Streicher for his location, mailing address, and phone number.  Bob
 [ lives in Pennsylvania but has a New York address.
 [ --Relief Editor.