The Broadway Panhandler (65 E. 8th St.) might have some stuff. They seem to always have a sale going.
Also, other sharp objects may be had at MiN (117 Crosby).
There is, allegedly, a Kikuichi showroom in "New York", and by that they mean 560 Sylvan Ave 3F, Englewood Cliffs, NJ 07632.
Cheers,
Jack