Do aliens exist? We have no idea what may be out there in the universe. Extraterrestrial life may be common and we just don’t know it yet. Some people say that they’ve seen the signs, like UFOs. If you believe, it might be time to get your crayons. There are some really cute aliens right here to print. There are also some great monster coloring pages, ghosts, skeletons, and all kinds of Halloween coloring pages.