The Crown by Westside is a sligthly stable putter, that sports a beaded rim. It's stability makes it great when putting into the wind. Full Disclaimer, this is not comfortable to wear on your head, nor will your friends allow you full authority over them while wearing it... although it may work if you speak in a "royal" accent.
Originating out of FInland, Westside is now owned by Latitude 64 and Dynamic Discs. But they still continue to pump out a full lineup of discs.
While they are mainly known for their quality high speed drivers they still have discs suitable for, well, players like us including the popular Harp putt & approach disc.