... The Fisher is selling for $22.95, I'm curious if maybe the cartridge from the fisher will fit the Zebra, they look similar, I have a couple Fishers so I'll try it...
Most of you probably know about Campmor and if you make an order
you might pick up a Fisher pen also: $7.99, plastic bottom metal
top.
http://www.campmor.com/webapp/wcs/stores/servlet/ProductDisplay?productId=46918Refills are $4.99.
http://www.campmor.com/webapp/wcs/stores/servlet/ProductDisplay?productId=46919They have some note pads: Rite in the Rain.
Just another option. Good luck.