It’s supposed to be “Thomas and Twilight Sparkle Say Merry Madagascar”. Saying “Says” after two characters’ names makes it sound like a double feature.
Wouldn’t it be better to use “Thomas and Twilight Sparkle Wish You A Merry Madagascar”? "Thomas and Twilight Sparkle Says Merry Madagascar" sounds like baby talk.
Pooh's Adventures. A meme that sounds quite regular for a strange mind at first, but when you find out that they have plans for a family-friendly "Pooh's Adventures of Avatar", then everything is ruined.
Join me as I take on the worst and most bizarre of these fan-created crossovers, watching as much as I can and browsing the wiki to see what other ideas they have up their sleeves (and won't bother to complete).