At our last 5160 Club meeting Eric Ochs passed around a bunch of his folders... one of which had a stunning set of spruce cone scales: http://www.elementalforge.com/5160Club/201211Newsletter.pdf
Eric said he gets this sort of thing from Ankrom Exotics: http://www.ankromexotics.com/
and it looks from their web site like the do custom stabilization also.