what useful product can you make using recyclable items?

Answer 1

Refill water bottles from your kitchen tap.
Use paper bags to store anything and everything.
Color and cut a paper bag to make a mask.
Bottles can be used as flower vases.

Here are hundreds of ideas.

http://www.google.com/search?q=what+useful+product+can+you+make+using+recyclable+items?&biw=1920&bih=955&tbm=isch&tbo=u&source=univ&sa=X&ei=jBYcVa2sA4qUNtLxg5gP&ved=0CB0QsAQ