Noel, Paul pointed you in the correct direction. For some reason the Gramercy Tools Handle Maker's Rasp has been out of stock for quite a while. I think it has been a couple months at least, as I was waiting for them to show as in stock. Would be nice to have another source for these.
Bob, thanks for the additional edification.
I found the West Marine epoxy yesterday. I actually had some for canoe repair but think I am out of stock. As I recall they offer fillers & dies to add to it too. I use to have a West catalog somewhere, but I will find the current info. on line.
Here is a link to the two handles I am working on now:
http://www.flickr.com/photos/16891057@N05/