(Aside from the double-chocolate mini cupcakes and lavender lemonade, naturally)
Beatrix Potter party hats made by Aunt Zizzy and animal faces done by Oma.
Of course, Jemima Puddleduck's egg hunt:
Mr Jeremy Fisher's fishing game:
and Peter Rabbit's Garden Obstacle Course (organized and led by Grandpa):
... are all great fun, too.
One happy and tired three-year-old!