A close-up of the bottle itself.
Place a small drop of the oil (it takes so little) on the surface of the carving material.
I used a Q-tip to spread the oil as evenly as possible over the surface of the carving material.
Place printed image face down on top of the wet surface.
I use the Q-tip (that I used for spreading the oil) to "press" the surface and ensure that all of the image is saturated with the oil.
Gently peel back the paper to see the image on the carving material. If any spots were not transferred, lay the paper back down again and add a wee bit more oil (too much will cause the image to blotch).