Oh wait! You were talking about Valentine's Day? I was thinking about those really good German Beers I drank while I lived abroad. Let's go find an import and pretend we are back there.
First clean your glass with an alcohol and water mix and let them air dry.
Depending on the result you want you can spray with Xtool Black Marking Spray (tends to be a bit lighter) or Cermark Ultra for a darker. I used the latter.
Let the item sit for about 10 minutes to ensure it is dry.
Place the item in the chuck of the RA2 accessory. Position the red cross laser at the highest point of the object.
Use the framing tool, and and preview screens to ensure your placement on the item is accurate.
Process.
Rinse the glass under warm water and then dry with a microfiber cloth.