Andy,

The rust preventor I use is Vasaline Petrolium Jelly.....I am sure you should be able to get this in the States....it is non toxic and spread fairly thickly stops the air getting to the blade to create rust. All knives can be used without a wipe off if need be and no dodgy stomaches like mineral oil can create. It is good for a load of other uses to....heat rash...chapped lips...sore eyes....blister hot spots....great for a First Aid kit.

Great collection as well!