I can't just name one!
Brothers can't have a beard and be anything in the congregation......even though Jesus had a beard.
Birthdays are forbidden because you're the center of attention and it's from pagan origin.......Wedding anniversaries are fine even though you're the center of attention and many of the customs are from pagan origin.
Having sex with an animal isn't considered "fornication" (from the Aid to Bible Understanding)
Jehovah lives in the Dagoba System, along with Yoda..........or someplace like that according to Charles Russell.