I gave myself an exercise this spring...

90 little bottles (1.5-4 inches tall), each a little different although there were some variations on couple of themes. 

Reason: I gave a "workshop/demo" presentation a Mother/Daughter brunch, and my goal was to give away a pot to every attendee...  I was able to practice the “same” form over and over again, and all the  pots had a home.  Everybody wins!