We found these at the city park and called them brains. The real name is "Osage Orange".
The Brain fruit has lead to some wonderful conversations with our son.
"Can I take my brain to school today?"
"My brain is covered in ants!"
"Oh look, I've dropped my brain and its rolling down a hill"
"Charlotte took my brain and now I can't find it!" followed by dad saying "I lost my marbles once"Sam again "Can someone help me find my brain?"
I love nature walks!