1) WHAT IS A SOURCE OF TRAIN HORNS? 2) DOES ANYONE KNOW OF A MAKER OF 5 CHIME (OR TUBE) STEAM ENGINE WHISTLES? THESE ARE USUALLY 1/2 INCH TUBES WITH A WEDGE CUTOUT NEAR THE BOTTOM WHERE 5 OF THESE ARE FITTED ON A 2 INCH MANIFOLD THAT IS THE ENTRANCE. MACHINE SHOP MADE TO BLOW WITH MOUTH OR SOME ARE ...