For my shoe, I chose my high heels I wore for my prom in my senior year of high school. As I changed the position of the light of my shoe, the shadow made the most changes throughout my shoot. My light sources are not that bright, but there are some pictures where the light shines directly on a certain spot which makes the shoe sparkle even more in that certain spot.
Watch the glare as you move the light around a receive surface like this.