For $10 you can get two that will fit the Classic size SAKs and 2 to fit larger SAKs. Kickstarter just began this morning so you have plenty of time to get in on it. Firefly Kickstarter Link
I'm more the Bic lighter sort, but that is an interesting idea for those folks who like the spark-rods.
I think it was 13 AU$ for the minimum pledge, ended up being the same for a larger one so I caved and bought a larger one.