A drinking glass for Grappa, low key lighting. Strobist: Two Yongnuo 560III flashes behind the black background of the glass firing at the white wall (1/8 I think). Two pieces of styrofoam on both sides of the glass. (Yes, I know, the glass could have been cleaner).
<a href="//commons.wikimedia.org/wiki/User:Code" title="User:Code">Ansgar Koreng</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>