If you take your own mug to the meetings, you could make lug-a-mug bags to swap. Basically it's just a little quilted draw string bag with a base, it was a free pattern years ago, not sure if there's one out there on the web now or not. This is not the pattern I used but I see they have given permission for it to be used in a guild setting.
http://limestonequiltersguild.files....ept2011bom.pdf