Bath Crayons

So I bought these bath crayons for the girls. We've had them before, but Norah was just 2 and Lucy was a baby. I think Norah liked them well enough for a 2 year old, but she didn't miss them once she used them up.
Let me begin by saying that my girls don't really like bathtime. They do okay for the grandmas, but they scream whenever Kevin or I give them baths, which is - oh, yea, ALL THE TIME. I have bought all kinds of toys, but they don't care.
Anyway, I bought the crayons and the girls LOVE them! When we bought them, the girls and I made a deal that they could use them as long as they cleaned up their "art" when bathtime was over. They have used the crayons for EVERY bath in the last 2 weeks and they have been great about wiping down the walls. The best part is that they have not cried for a single bath since I bought the crayons.
Tonight, every square inch of the bathtub and surround were COVERED in crayon. When it was time to clean up, Norah was shoving Lucy to clean a certain corner. I gave her several warnings about not shoving Lucy. I finally told her she was finished and she must get out. She started crying, "Nooooo! Please don't make me get out. I'm not done cleaning!"

I NEVER thought I would hear her say that!