Roly, here's the quick tutorial...make pattern, put pattern on wood, cut wood.
OK, I had to do that. I first drew a wolf outline on paper, you know, the stuff we used in the olden days. Then I drew simple letters. Next, I drew the letter shapes in the form of a puzzle. I scanned this as a JPEG then copied the JPEG into Inkscape and used the Trace Bitmap menu item. I touched it up as needed.
Thanks for all the comments.