What are some really creative things you've had kids have come up with?

When my oldest was about 5 we went to her dad’s softball games. I let her wander around and play in the dirt and stuff. She showed up with a large rock, wanted to know if she could take it home.
I said, “What for?”
“Because it’s a duck,” she said.
I knew better than to say anything more. Kid’s logic comes out one way or another!
So we got home, she disappears into her room with water colors, comes out and presents me with this.
I JUMPED on it!! I found some spray on laquer and hopefully sealed it that way. I’m kind of afraid to wash it too carefully though, so it’s a bit dirty. It’s been in my bathroom ever since.

She also found a funky rock with a long neck that she painted to be a cat. I used it as a door stop, until its neck broke. That was cool too.

She needs to get busy and paint me some more rocks.