Do you all know each other? If not - how about introducing youselvrs to each other?
(You might want to put a time limit on that)
Maybe have each person name their favorite quulting style - biggest or most embarassing mistake - if i knew then what i know now - favorite brand of quilting ruler and why-
I am not mentioning talking about machines because there may be major differences in what people can afforrd.
Other topics - to have a stash or not - if one has a stash, is it still under control?
I don't know your group - but some definitely have snobs - and i would definitrly try to kerp them in
Show and tell for best quilting gadget under $25.
Prize for the person that remembered to bring everything needed?