True Bard D'Or's Fine Instruments in central Crossing, Zoluren and Elepaio's Luthierre on the second tier of Ratha, Qi'Reshalia, both offer a Tin Whistle.
Sinjian's Bardic Requisites of southern Leth Deriel,Zoluren features a woodcarver that will carve whistles of foraged woods. His designs are always of birds, and seem to be completly random. I have seen him do duck, cardinal, chickadee, and several other birds. They appear similar to, "a rosewood chickadee whistle."