Affiliate links. Take the tops off the glass ornaments. Set aside. Open the Polycrylic, stir it up, and draw a syringe of it. Squirt the Polycrylic into the ornament. It will take about 10cc.

Use the Ellipse tool and draw a circle. Hold the Shift key as you draw to create a circle. Fill the circle with red. No stroke. Step 2: Select the circle and go under Transform and choose Scale.