Here are some of mine.
And, I ALWAYS make more than I need, and then throw the extras in a container so I'll have a bow on hand at short notice.
Put down a "glob" of buttercream, about an inch and a half across and maybe an inch tall, place eight loops around some on their sides, and some more standing. If you need to, you can add a little more frosting at this point, then add the remaining loops needed to fill in your bow.
Just play with it on a practice surface, put it together and take it apart until you get it the way you want.