I remember seeing extremely long curling fingernails on the artist Coco from the group SWV and they freaked me out. Take a look at the worlds longest according to Guinness World Records.
At a whopping 288.8 inches Ayanna Williams grew them for 30 years. They will be on display in Florida at Ripley's Believe It or Not, "It's going to feel like it's a wax [sculpture] of myself. Even though it's just my nails, it's going to be awesome. I can't wait to see that." UPI