Clarksdale + Memphis/Graceland is very doable, although you did not mention Tennessee. And you 100% need to hit this place:
https://blueandwhiterestaurant.com/
In case it wasn't clear, I was not trying to compile a list of bars that made bespoke cocktails. I was trying (and now I've succeeded) to identify a particular bar by listing some of its characteristics. Because someone elsewhere had a vague memory of it.
Yep. I got confused and thought, must be ESCB, but that was a tiki place. Mais non! It became a tiki place, Painkiller. Now it's, what, East Side Vape Pens and Lottery Tickets?