Ảo ảnh quang học mới lạ

I'm prompting Nano Banana Pro to see if it can come up with a novel optical illusion. Prompt: Consider the elements of typical optical illusions. Think about all the different types and how they work. Now make an image that is a novel optical illusion. Avoid the common tropes like impossible structures, steps, faces and vases. Surprise me. The illusion should be based around the word fofr.