Lousy Smarch Weather!

I have a thematic idea. It will carry me the blog through the entire month of March. I could go all year (or several years for that matter) but I think one month is sufficient. I'd like to see how long I can go without actually saying what the theme is. We'll see if any readers make the connection. We'll see if I make the clues too obscure or too obvious. I invite you to pay along at home. Sorry though there's no recipe tonight. No recipe but a picture. I'll let you imagine what was in it. It's unintentionally fitting that I drink that particular drink. Perhaps it is only fitting for me; we'll get to that. I will leave you with a question.

What would you have put in this vessel?