Just drop them in the water and watch as they fizz away and change the water color at the same time. Then just add the toys you want. I just picked out the water animal toys and put them in the tub.
Big brother got out his fishing pools and was trying to fish while he waited for me to get the tub ready. We have done this a few times this week and this is the first time I got in there with the camera. Would love for you to share your bath time fun with us.