These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Rudolph The Red Nosed Reindeer
Alternate Character Interpretation: Santa is in fact a big jerk because he never even "liked" Rudolph (if you can call it that) until he realized that he could exploit his nose. In other words, Santa only cares about Rudolph's nose, not Rudolph.
Accidental Aesop: Rudolph's Shiny Year has one about embracing the things that make you unique, but it sort of blurs into "if your physical deformity makes people laugh, let them. Be glad you're making them so happy."
Ear Worm: Several of the songs. Maybe "We're a Couple of Misfits" especially.
Ensemble Darkhorse: The Misfit Doll, whose total screen-time would amount to less than a minute, and remains nameless, has become a fairly popular and iconic character in the special.
Fanon Discontinuity: The sequel, Rudolph's Shiny New Year, suddenly has a completely different Rudolph puppet, despite starring the same character and taking place immediately after this special.
Not to mention he's also young again in all the sequels.
Or did he get his antlers trimmed once in a while?
Fans of both the 2-D 1998 movie and the "originals" will agree that the 3-D Rudolph the Red-Nosed Reindeer & the Island of Misfit Toys never should have happened.
First Installment Wins: None of the sequels will ever hold a candle to original 1964 special.
Memetic Mutation: "You eat what you like, and I'll eat what I like!"
"I'm cute! I'm cute! She said I'm CUTE!"
Preferably said as though one has a stuffed nose: "She said I'm CYUUUUUUUUUDE!"
Not to mention when Hermey plucks out all of his teeth while he and Cornelius save the reindeer.
Tear Jerker: The Island of Misfit Toys. The concept of it is surprisingly depressing.
When Yukon is thought to be dead.
From The Island of Misfit Toys, Mr. Cuddles, after being exposed as the Toy Taker, singing his backstory.
The Woobie: Rudolph, Hermey, and everyone on the Island of Misfit Toys.
From The Island of Misfit Toys, we get the Toy Taker, because he's actually a worn-out teddy bear named Mr. Cuddles, who felt like he was abandoned, but it turns out he wasn't.
Ugly Cute: The Bumble! You can't deny that underneath all that stop motion fur he's kinda cute.