Three and four chunks out of five assembled and attached.  These took me about an hour to put together each, and then another fifteen to twenty minutes to stick together.  Total expenditure of time so far: Sixteen hours.  I made one of these a few months ago with 4 in. by 4 in. paper, and it took me about half that amount of time.  Size counts.


3630 Phizz Ball
Units by Thomas Hull
This thing took me a year to make, doesn’t hold its shape, and it took me a week to put it together because it kept falling apart, but I love it. Shoutout to @gandalfthepilgrim for pushing me to keep trying to assemble it because I almost gave up without his encouragement