Pool.

When I was pregnant, my parents bought us this little tiny pool for Christmas so that when the baby was born a few months later, we'd have a little pool to play in for the coming summer.  Well, I don't think we actually used it much last summer, but this summer we got it out, and even though it's very small and very shallow, Kylan thinks its one of the greatest things ever invented.

With bathing suit.

Sans bathing suit.