W1-W3  Three whistling tubes. Simple metal and plastic tubes of various
sizes between 40 and 60 inches long and 1 to 1 inches in diameter.
Used in A Monkey’s Paw.

W4-W9  Six tuneable wind-wands. Each consists of a ribbon on a frame
with a handle and is whirled in the air.
Used in Beneath the Fired City.