I consider myself lucky. All of my yorkies love bath time. I make sure to put a small towel in the bottom of the tub so they don't slip. I have the water temp adjusted before I bring them in. I use a removable shower nozel and I only give one bath at a time so it is kind of like their own one on one time with mommy
I also start with spraying the feet first till they get used to it and relax then I do the face cleaning first (not their favorite part) then we wash the rest of the body. Try to stay really calm and relaxed with them.