Potter Park Zoo would be an interesting choice. I haven't been in over a decade but I remember it being cheap, close to downtown and nice if we're planning a day meet. If there is interest I could contact them to see if it's vapor friendly. I vaped pretty openly at the detroit zoo last summer with no issues but a big group is different than one lone whackadoodle.
Anyone in the Lansing area that can scope out a bar or two for the evening hours?
Something with a view of the Cedar river would be pimp!