Quoted from Nokoro:Marco and pinballife have them. They are also super bouncy and prevent a lot of drains down the outlanes.
A little too bouncy imo but do make it easy to nudge out of trouble. I just hate it when I need to make a shot and the ball seems to bounce around forever. I love the look but thinking of trying the Titan rubbers at some point.
Kholmes - You want the 3/8" OD or 7/16" OD mini post rubbers. Go to pinballlife and do a search for "super mini". I forget which size ST uses but the manual lists which one. You might want to get some super flipper rubbers, too. The colors are great and don't get dirty like the stock, black ones. They play a little different, though.