A few months ago, on of those bows fell off, and I lost it.
So, I made new bows for my slippers.
I used scissors, a needle and thread, and 2 equal lengths of black satin ribbon.
The one slipper had already lost it's bow, but I had to take the bow off of the other.
I tied ribbons into bows, and adjusted them until they looked the way I wanted them to; nice and full, and even.
Then, I sewed from the inside of the slipper, out,
I stuck the needle through the centre of the bow,
And I sewed the bow down with about 3 or 4 stitches, until I was satisfied that it was secure.
Then I did the same with the second slipper.
And VOILA! I actually like these bows much better than the bows that the slippers came with. These are much bigger and more feminine.