I too have made one but it wasn't as poofy as it should have been. I did mine very similar as mentioned except I just glued it together. I will mention that now before I cut the marabou I always glue a strip of ribbon where I want to cut then cut through the middle of the glued ribbon so there are no fly aways. HTH
Welcome to the group, you will make less bows now because this place is addictive!!