Last year we did a quilt also. It was a twin size, and the children did beach and ocean pictures. Of course each child in the class wants to own the quilt, so they put a lot of pressure on their parents the night of the Open House to win them the quilt. Therefore it is a pretty successful event for the school! And the quality of the art is amazing.
My high school son is in the marching band and they just recently had a fundraiser auction also. So, of course, I decided to make a quilt and donate it to the cause (because that's what I do). It was a twin size quilt in the colors of his school. It is actually the quilt that I have under my blog title. I haven't heard yet how much it went for. I hope it did well.