Sanguine is a red Bat Pony, but with blue tentacles for mane and tail. She has blue eyes and commonly is seen to wear an optimistic, bright smile; even when the Reaper is breathing down her neck.
Pinkie Pie lives in a roomy Pent House apartment. As she picked up a tweaked version of the Holographic characters, she chose what her new friends would be like. Tail, tentacles and a Bat.
Pinkie Pie chose to take an early morning stroll along the streets of Ponyville, with only a trusty flashlight in her mane. There apparently was a lost Pony out there, a very strange one with tentacles for mane and tail.