It’s very lazy, not to mention most of the time the colors don’t even go that well together. I mean look at Twilight and her parents. She doesn’t just have a coat color of one parent and the mane color of the other. I mean her hair style is similar to her mothers, but she still has enough attributes to make her original. But when you are making a love child for two characters like Big Mac and Fluttershy, and the children are just small versions of them mixed together, it’s lazy. They can have different colors than their parents. Now when the colors just plain don’t look good together, that’s even worse.  I mean look at Pinkie Pie and her parents even. Look at all of her siblings and their parents. Not one of them even has their father’s coat color. They remain originally colored and don’t just look like you put one pony’s mane on the others body and shrunk it down.

My main point is, don’t be afraid to make the ship child a little different. They don’t have to be copies of their parents. You can make them original and unique. I’d say just keep the Sparkle family in mind when designing these characters and you should do much better in my opinion.

- Anonymous