I only knew a few of these (Flynn's age, Gothel's dress, some of the symbols from other movies, Pinocchio's cameo) but I love the name Bastian, but that would be redundant since there's a Disney character name Sebastian already. Also, many people know this by now but Gothel's affection for Rapunzel's hair rather than Rapunzel herself shows how she never loved HER, but rather loved her powers. The descending lantern fact is my fav! ADORABLE!
There was this book, a book I used to read every night to all the younger kids, "The Tales of Flynnigan Rider". <-----so not only is Flynn/Eugene already perfect, but he is also A BOY WHO READS. he reads. he reads and apparently loves it if He read it every night.