Can any noun be duplicated like 人人 and 天天? I'm familiar with duplication of nouns to mean "all" or "every", such as


  打扫卫生人人有责。
  Everyone is responsible for cleaning up.  
  
  好好学习天天向上。
  If you study well you will improve every day.


Can the same structure be used for any noun?


  狗狗有尾。
  All dogs have tails (?)  
  
  腿腿疼手手冷。
  Both of my legs hurt and both of my hands are cold (?)  
  
  熊猫熊猫很可爱。
  All pandas are cute (?)  


Are these acceptable sentences?
You can do 狗狗, 腿腿 or 手手. But this usage doesn't show plural. Usually girls use these kinds of words to act cute. 

熊猫 already contains two characters so we don't say 熊猫熊猫.