Supplies:
Stamp
Fabric ink pad
Pre-washed Twill trim (I use 1/2" wide)
Scissors
Iron (optional)
The stamp I use is a letterpress block I made to say "BELROSSA"

To get started, make sure the trim is pre-washed to minimize stamp fading.
Simply press the stamp onto the ink pad and then onto the trim about an inch or more apart
After stamping the trim, I like to heat set the ink onto the trim. This is optional, but will give longer lasting results.
Next, cut the trim into pieces, and you are ready for sewing!
To sew, fold the raw edges under and sew a straight line up and down near the fold.
*I found my letter press letters at a local antique store, they are also available multiple placed around the internet...etsy, ebay, antique webstores. My size is 28 pt font, and fits the trim perfectly!