Yes, my flying saucer developed a squeek. I can't find the post now but someone had recommended using vegetable oil (i think, you should probably double check or wait for someone else to respond) on the bearing and it worked well for a little while. Harley never showed in interest in licking it and couldn't really get anywhere near it anyway. Might be worth looking into.
edit* found the thread! viewtopic.php?f=2&t=3880&p=31419&hilit=vegetable+oil#p31419
edit* found the thread! viewtopic.php?f=2&t=3880&p=31419&hilit=vegetable+oil#p31419