Check this out:
Normally, Christmas cactuses have two sides (and two ends), but this one has three ends. This is a cutting of a pink-flowering Christmas cactus. I used to think it was an Easter cactus, but nope: the flowers look just like those of my pink-flowering Thanksgiving cactus. I'm guessing it's a hybrid Christmas cactus, though, since it flowers at Easter.
See this similar post about a Thanksgiving cactus: