If you're in the market for a good harmonica microphone--and who isn't?--you might want to check out one or more of the following suppliers.  Before you do, though, you'll want to download the FREE comprehensive introduction to the subject written by Greg Heumann of BlowMeAway Productions.  Here's the link:   www.tradebit.com/filedetail.php/101745351-all-about-harmonica-microphones-pdf

DELUXE VINTAGE HARP MICS is the brainchild of my good friend Ron Sunshine.  Ron and I were both street musicians in Paris and NYC during the 1980s and early 1990s; by the mid-1990s, Ron was fronting two groups, Full Swing and The Smoking Section.  These days he's the king of the hill in New York's swing dance scene:  a bandleader who blows harp and can really carry a tune.  His sideline is vintage harmonica mics, and he's just about cornered the market there.  Start with him:

www.myspace.com/deluxevintageharpmics

You might also want to take a look at Fat Bottom Harp Mics, operated by master customizer/repairer Chuck Gurney.  Lots of major league harp guys--including Kim Wilson, Curtis Salgado, Rod Piazza, Rick Estrin, and Sugar Ray Norcia--endorse Fat Bottom. 

http://www.fatbottom-mics.com/

Blow Me Away Productions, hosted by Greg Heumann, offers some pretty nifty hand-crafted mics, too, along with an innovative in-line volume control used by a long list of pros.

http://www.blowsmeaway.com/