Jane, here is the crv as requested. Both sides are identical, and we cut both sides on one piece of wood in order to minimize bit changes. However, this forum limits the size of the attachment to 2M and with both sides the file was too big. So I deleted the 2nd side and the file is 1.6M, small enough to upload. You can either cut the sides one at a time or recreate the 2nd side in VCP.
We carved a Script "H" in the center for our last name, but of course you can change this to whatever you want. Make sure you cut out the pockets in the center rather slowly so they don't chip out. We lost a few because of this.
On very fragile wood, like thin cherry, I've had success at finishing with diluted polyurethane and letting it dry thoroughly before machining. I'm not sure if there are other wood hardener out there that would also improve the strength of the fibers much better.
Oops, Andy, I think I misled you in thinking that I had try to cut the napkin holder and had a bunch of fails. I've been working on three other projects and haven't had time for the napkin holder, yet. I'll let you know what the outcome is. Hopefully I can get to it next week. It seems that on some projects we have to sort of stabilize the wood.