Glass? I think I'd rather have plastic with a weight on the bottom. Glass near my lenses would freak me out.
Like this, and it's only $4.00
https://www.amazon.com/Manikin-Glasses-Styrofoam-Mannequin-Display/dp/B07H2TMGWW/ref=asc_df_B07H2TMGWW/?tag=hyprod-20&linkCode=df0&hvadid=309760582713&hvpos=1o1&hvnetw=g&hvrand=10377151499179161050&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032531&hvtargid=pla-568166959326&psc=1