I have a potential customer who wants a tiffany style wedding cake, what is that? I am assuming that she is refering to the blue box, or is there an actual style of decorating called tiffany? I know this is a dumb question, and I have not talked to the bride herself yet, this came from her sister so I just want to be sure that I am fully informed when I do talk to the bride.
Dont' be shy about just saying "What's that look like?" to a bride. Have them provide a photo of what they mean.
Remember, we run into people who want a "full sheet cake" for 12 people, so clarify what they THINK it is rather than trying to figure out what it MIGHT be.
Definitely get a picture of what she wants and color swatches if possible. Leaves less room for doubt.
A Tiffany style cake could also mean the Tiffany lamps which are stained glass (doubtful but possible)