Glass Product Photography Tip #4: Use Interesting Backgrounds
Thanks to light refraction, you can produce unique and creative glass photography. An interesting background placed behind the glass object can enhance it completely.
Fill a glass with water and use a different background, such as two solid colors or a piece of striped cardboard to create something interesting.
You can even load images on your laptop screen (try googling "abstract wallpaper") and use those images as a background for placing the glassware.