I would sew the binding to the back, bring to front and machine sew it too. This what I now do on all my quilts. Zig zag if you haven't sewn on the binding before. Much sturdier that hand sewing and much faster. The colors and pattern should dazzle so much she may not notice. If I couldn't finish it the right way and wash it too. I would hold off and mail it when it is finished.