Good idea to try with a short cardigan? Grey wool cardigan from Red Valentino featuring a round neck, a central front button fastening, long fitted sleeves, a sheer black polka-dotted hem section with a grosgrain bow detail.
Good idea to extend sleeves that are too short. Transform socks into wrist warmers. This is a simple, but very clever idea. If you can crochet and or knit, then there are lots of pretty edgings that you could use on these.