You-Tube has a number of demonstration videos and after watching several I tried a few with some tricks of my own added. I used different printers and different materials that are readily available at your local art store.
This transfer is a color laser print on regular plywood.
This one is ink jet printed and transferred.
This is also an ink jet print. I was a bit too aggressive when removing the paper. It does give it an aged effect. Right above the "E" is a filled knot in the plywood.
These are some smaller labels. Again I was too aggressive when removing the paper. I also need to trim closer to the actual photo to prevent the white "border" effect.
Here is the whole set. I am sure you will see these again on some future projects.