One effect of all the um, health concerns I've had lately is I have an awesome stash of toilet paper tubes. The last ones I bought were white and sturdy and I just thought, "surely there is something cool we can make out of these."
So I googled and here it is
I think they look kind of flower-y. Gonna get the girls to paint them and then we'll hang them from the ceiling in the new playroom/old homeschool room.
It doesn't get much cheaper than that folks. (hoping they don't look like t.p. tubes)