I'm with Carole about a yard sale, though it takes a lot of time to collect, sort and tag the items and run the sale, and afterward to dispense with the items that don't sell. We did one for my musicians' group a couple of years ago.

My mom went to the Czech Republic with a team from church and was very surprised by the amounts that people gave in response to fund-raising letters. I would be happy to donate when you are ready to receive contributions.