Hi,
Which of the following two sentences is correct? The context is an essay prompt: "If you were a (metal), what would you be?"
"To create something beautiful out of a nice piece like me, you might need to do some polishing..."
"To create something beautiful out of a nice piece like I am, you might need to do some polishing..."
Say it the first way. I also suggest you say 'a nice piece of metal like me', because to say someone is 'a nice piece' can be a sexual reference in certain contexts.
Best wishes, Clive