I returned to find the leaf and believe this is it! Fall has changed it dramatically over the week, and it seems like the rain we had three of those days, has knocked some of the "balls" off the leaf as well. Also the fluff that surrounded them last week has been flattened by the rain, yet I'm sure that these are the same ones. Do you recognize them now? I've put these remaining ones away for the winter in my windowed shed.