I've been reading books about altered art techniques, and the one that looks easy for me at least is where you use packing tape, placed over the image (or part that you want to transfer), rub all over well, then soak in water until paper dissolves and washes off. When you dab off the water, the tape is still sticky, and you can stick in in your book. It looked cool in the books I read, but I haven't had the chance to try it yet. No fancy materials, though, which appeals to me.