If we know anything about Floyd “Money” Mayweather this should not surprise us. TMZ Sports has learned Floyd Mayweather used an 18 karat gold pen — worth $4,000 — to sign his contract for the big Pacquiao fight. It’s called the Peerless 125 (because there are only 125 in the world) by Cross. The same type of pen has been used by Oprah Winfrey and President Obama, who has signed official documents in the past with the pen. The company was excited to add Floyd to the list, who promptly retired his pen, saying it is now part of history. Check the gallery!