A client's favorite, favorite alpaca sweater wore through the elbows. Such yummy colors; I can see why he loves it. I rewove the yarn at the elbows then hand-stitched leather patches to both elbows for reinforcement. You can see the hand-stitching above.
Result--a renewed favorite sweater for less than half the cost of buying and wearing in a new one. I'll be happy to repair a sweater for you!