Every evening now I read my daughter a couple chapter books every night and we've started the Magic Tree House series. I decided to make my daughter a bath themed on the first book Dawn of the Dinosaurs. She really enjoyed it and thought it was really cute! The pictures aren't the greatest, the lighting was bad but you'll get the gist.
I had the water neon green too but like I said the lighting was bad and colors didn't come across very well.
As you can see in the above picture I added a couple plastic dinosaur figures of dinosaurs that are in the book. Tyrannosaurus Rex and Triceratops.
I also wanted to add some more concepts from the book, to make the bath more realistic and give it all that more detail for the pretend play. So with golden craft foam, scissors, and a Sharpie I made the letter "M" medallion that Jack found in dinosaur time, and with a piece of purple craft foam, scissors and a Sharpie I made a little rectangle for "Jack's Journal" where he writes down the information he gathers.