LOL...I think it's a yorkie trait to be the biggest drama queens they can be when it comes to nails and baths....I'm lucky....mine love baths....well one does.
What I did to get them used to the brush was do little massages at night with the brush...not really grooming....just letting them know it FEELS good and get them used to the brush. IT worked great and now I can brush most areas with ease.....but...yorkies have a thing about their FEET ...lol - it's like a rule in my house...Don't TOUCH the feet ! That's the hardest part for me to groom on mine...
Here is a great site for doing bows....
http://www.yorkies4me.com/topknots.htm I don't bother with double bands but it gives you a good visual