Insert the low-temp glue stick into the hot glue gun and plug in the appliance.
Measure out the amount of ribbon you'll need to go around the inside of the vase one time. Add 1/4 inch extra for coverage.
Cut the ribbon. Experiment with the positioning of the ribbon in the vase: centered, at the top, or at the bottom.
Place a small drop of glue on two corners of the ribbon and quickly adhere the ribbon to the inside of the vase. Hold in place until cool.
Hold the ribbon tight to the inside of the vase and secure the ribbon to each side of the vase with a drop of hot glue.
Glue the tail end of the ribbon onto the original starting point. Let the glue cool completely.
Fill the vase with cool water and flowers.