+ [MCE] Pink Moobloom (When renamed to "Pink Moobloom", or when spawned in a flower forest) + [MCE] Yellow Moobloom (When renamed to "Moobloom", or when spawned in a flower forest)
Bees: + Trans Pride Flag Bee + Gay Pride Flag Bee + Bi Pride Flag Bee + Lesbian Pride Flag Bee + Pan Pride Flag Bee + Asexual Pride Flag Bee + Ally Pride Flag Bee + Non-binary Pride Flag Bee
Fishy's Magic Horses! (with some edits by dbrighthd ;P)
+ Pegasus (rename a horse to "Pegasus") + Unicorn (rename a white horse to "Unicorn") + Alicorn (rename a white horse to "Alicorn") + Zombie Pegasus (rename a horse to "Zegasus") + Skeleton Pegasus (No feathers) + Skeleton Pegasus (Some Feathers) + Skeleton Pegasus (a lot of feathers) + Mule and Donkey pegasus (rename to "Pegasus")
Other:
+[MCE] Bold striped rabbit
+ [MCE] Jolly llama (Only when a llama is renamed to "Jolly") + [MCE] Horned Sheep + [MCE] Furnace Golem
+ [MCE] Glowing Squid
+ [MCE] Muddy Rabbit
+ [MCE] Vested Rabbit
+ Zombie horse (already exists in game, buit rename a horse to "Zorse" to make it a zombie horse)
+ Skeleton Donkeys and Mules when renamed to "Skelly"
Hostile Mobs:
+ Soul Blaze (Only when spawned in Soul Sand Valley)
+ Soul Skeletons (When spawned in Soul Sand Valley)
+ Alex Husk
+ Alex Zombie
+ [MCE] Bone Spider
+ Subtle animation to glow squid + Black Melanoid Axolotl (must rename a wild/brown axolotl to anything with "Black" in it) + Albino Axolotl (must rename a pink/lucy axolotl to anything with "Albino" in it) + Glowing Green Axolotl (must rename a gold axolotl to anything with "Green" in it)
Axolotl buckets are retextured to match the axolotl type inside them!
+ Chimera axolotls! (rename any axolotl to "Chimera") + Red squid variant (only spawns in deep ocean) (#8) + jeb_ axolotl, rename an axolotl to jeb_ to have it animate like a jeb sheep!! (#11)
Firefly axolotls!* Mix and match axolotl bodies and tails! just rename any axolotl to have the tail type you want!
*this is a rare and slightly controversial practice in real life, and its done by splitting and recombining axolotl embryos, and causes no pain to the axolotl