Neil told me a story about the Yews that is more feasible... but although I've got a good memory, its not very long... NEIL?
I'll cut some Elder up for you tomorrow. I seal the ends and then plonk them on the aga for a week or so and I guess it should be a bit longer in your case just to make sure its dry. I have had a lot of luck with blanks and only lost a few but I've never done Elder before which is quite a punky wood anyway so we'll see. If all else fails, I've got some box.