Our guild is medium size - we pay for our space in a bank community room which does not give us a lot for Big Name teachers. We too have an annual auction and dues. During the auction fabric is occasionally set aside and earmarked for the Charity Project.
There is a Charity Chairperson who organizes a sewing day once a year where we meet and sew from 9 - 5 and another ongoing project that sends small baby quilts to a local organization.Our big Charity has been QoV recently and for that members volunteer to sew, iron or cut - bringing their own equipment - on the sewing day. The Chairperson and a few helpers put together "kits" for the sewers. and several of the guild members have longarm and quilt the finished tops.
The baby quilts are small things that the members do on their own and bring in finished for donation.