Plui Rain Cloud by MOLUK

Turn tub time into a weatherstravaganza! Okay, that's not a real word, but seriously.  Look at how fun this little cloud is! For bath time, pool time, water table time, or like, a bucket in the backyard time - this happy little cloud gives your babe the power to create rain with their own hands.  And we think that's pretty awesome.  

From the Moluk site:

"Pluï – The Rain Cloud beautifully illustrates the cycle of water and magically turns kids into little rainmakers. The smart bath toy works like a pipette and makes simple physics tangible and fun. The Pluï Cloud is sure to inspire wonderful stories. It
delights and surprises and quickly becomes an indispensable accessory during bath time.
A hidden mechanism allows parents to open the Cloud for cleaning."