Kohler even has a lift and turn for non-overflow bowls. (K-7725). They all come in a variety of finishes. Speaking of non-overflow bowls, what do you do when you have a faucet pop-up assembly designed for an overflow sink? Kohler was making a metal piece which could be used with a second washer to fill the void. I haven't found a source for just that piece, but I'm still looking. I may just bite the bullet and have some made.