Ever since the classic annoying ad campaign from my childhood where Olympic skier Suzy Chaffee became "Suzy Chapstick", I have enjoyed thinking up other possibilities for celebrity product advertising endorsements incorporating silly name changes. And now that Dame Judi Dench is getting older, how about having her become Judi Dentures for Polident? She could say that as an actress, having a beautiful smile is a must! And that's why she uses Polident to get her dentures their absolute cleanest and whitest! And then she could say that as a Briton, the local dentistry was so appallingly bad, she decided to remove all her teeth and replace them with dentures as the only way to get a beautiful smile in England. (Just kidding! She probably has all her own teeth and they look fine. It's just a lazy joke we like to make in America to get revenge on England for inflicting Piers Morgan on us.) And Polident has made her dentures so consistently beautiful and hassle-free, she has decided to change her name to Judi Dentures to help spread the word about how great Polident is! (And after that campaign runs for a while, making everyone want to get dentures and use Polident, they can get a celebrity named Polly to become Polly Dent for the next campaign!)
Here's an article about Suzy Chaffee, including the ad I remember from when I was a little kid:
http://www.powdermag.com/stories/reflections-with-suzy-chapstick-chaffee/