My cards have finally made their way into the postal systems - Canada Post for the Canadian destinations and the US Postal Service for all the rest.
There are two different cards. One, titled "Roots" for half of the recipients and the other, titled "Locked" to the other half of the recipients.
No particular rationale for who gets which one, other than to make sure bluejeh and bluejeh2 don't end with the same one .
The cards I've received so far are great, and deserving of individual comment. That is coming soon!