There are a few other places that sell flint and steel. Try Ragweed Forge and Jas. Townsend. I got my striker from Ragweed Forge, but it only has on handle (kind of j shaped). I think I might get an oval one or one like the site you had that has two handles. I think they might protect your hands a little better.
_________________________
A gentleman should always be able to break his fast in the manner of a gentleman where so ever he may find himself.--Good Omens