I agree that it's yours to do with as you want. They made the quilt in order to raise funds for their organization. They did that. Not everyone who buys a raffle ticket will want to keep the prize. If they cared about that, then they should ask the question before they sell the tickets. The point was to earn money, and you helped them to do that! Now go out and sell that quilt and use your prize money in the way that serves you best!