I can see why you'd be intrigued, but turning a myth into a prank is a bit risky. Fire‑birds as a regenerative creature would require a closed chemical cycle that we don't know exists in biology. Instead of setting up a dangerous experiment, you might want to look at real organisms that do self‑repair—like salamanders regenerating limbs—or at volcanic soil chemistry for clues. That way you get data without blowing up your living room.