If you are wanting newsprint for paper piecing, go to your local newspaper office and buy end rolls of newsprint paper. They sell for $5-6 here and have a lot of paper on them.
When my children were in school, I got it for them to color on, etc. We had friends over one evening, and the other kids started to tear the paper in hand size piece. Of course my children followed suit. Soon they had a pile of paper (not making a dent in the amount of the roll) and were tossing it up and playing in it like they would have played in leaves. A lot cleaner than the leaves and they had a lot of fun. They also picked it up when finished. Wvwey fall when I see the leaves turing color and getting ready to fall, I am reminded of their 'inside leaves'. :)