Friends sent us an early Christmas package that included bath fizzies - now a favorite for us. But then we realized that the little ones might enjoy the fizzing action too. A little sleuthing on the internet resulted in a lot of hits but we like all natural ones by Jean-Marie of Daisycakes Soap.
She makes her fizzies from skin-safe ingredients. The fizzing action releases an almond biscotti-scented oil that softens the water. We found them at Quiet Hours Toys and couldn't believe our luck when we saw the rocket-shaped fizzy but then realized they are sold out. The sheep and monkey set is still available.