A Catnip Mouse Kit is available at Schoolhouse Press on this page: http://www.schoolhousepress.com/tools.htm

Field tested, kitty approved. A ball of mouse-colored brown Shetland plus enough Mikey’s Killer Catnip to stuff several mice if you augment it with other stuffing. Testimonials on file from cats across the country; lots of interesting knitting techniques, too.

1/4 ounce of wool needed and 0, 00, or 000 needles - this needs a very firm gauge to keep from leaking catnip.