Yellow ADW Theme A nice theme for those using ADW launcher that contains beautiful yellow wallpapers - also turns icons yellow. Beautiful!
Gold / Yellow Button Theme If you have a home replacement app (openhome, ahome, pandahome, etc.) - this will turn your Android device a nice yellow color. Includes a transparent (therefore yellow) clock widget.
Warmth of “Yellow” This app costs $1.39 and is based on color therapy principles. It contains 100 photos of yellow things, intended to bring warmth and happiness to people that look at them! Nice photos, nice range of yellows.
Yellow Theme If you have aHome, Open Home, or Panda Home this is a nice, rich yellow theme you can use.