Well...many great ideas....
I had a chance to try a few this afternoon.... Honest...it was just for fun and I didn't damage my wing ever so slightly this morning on a landing....Honest!

[:@]
Used what I had on hand... Post it note idea worked well...
and for a bit larger batch... I used a plastic disposable cup...just cut it down so it wasn't too deep... and used scrap push rod pieces for a stirrer...
Thanks all!