Help! I know it is possible to paint hardware from cabinets and cupboards. Is it possible to paint bathroom fixtures, i.e., towel holders, toilet paper holders? I have painted the hardware and would like to paint the rest to match!

I am wondering what some of the painting pros here think about leaving Kilz primer, specifically the "premium acrylic" product, as a top coat? My wife is due in 3 weeks with a boy and I'm creating a sports-style nursery. I've painted some large graphics (sports jerseys) on the blue walls. The base of the jersey is white with colored acrylic paints creating the numbers, logos, etc. Everything is really turning out nice ... but today it hit me like a brick in the head -- the white is not a common white acrylic paint, but kilz premium acrylic primer. :wall: What effect will it have when I'm finished if I didn't cover the kilz and just left the primer as my white? Is the premium stuff going to yellow over time? Any help would be appreciated -- I really do not want to half to go back over all the white with, well, white. ???