I finished these two cuffs this weekend. The red and green cuff is made with sport sock yarn. It is very light and delicate and feels great on my wrist -- not heavy or bothersome. The cuff slips on and does not open up. I added the vintage green buttons for a little extra style.
This purple and grey cuff opens with a button and buttonhole (created by skipping a couple stitches and making a couple chains in the next row). I love these colors and the picot edging.
Both of these cuffs are available at etsy.com/shops/CraftyPastimes.