Stake Conference. Mom was feeling sort of migrane-y when the day arrived to actually put the arrangements together, so she asked Dad to do them-- and he happily obliged. He enjoys flower arranging.
Very promptly (less than a week) after the conference, a note arrived from our new stake president, thanking Mom for doing the flowers. The following Sunday, someone else thanked her again. We keep meaning to tell them who it really was, but we're all a bit forgetful, so it hasn't happened yet.