A rope bracelet - reminds me of making friendship bracelets back in the day. My right second toe used to go numb because I'd hook the end of the bracelet over it, and then knot embroidery floss for HOURS.
Don't throw your odd socks away. Instead, transform them into Sock Monsters! Simply stuff the socks and sew funny features onto them to make a whole array of crazy creatures. This sock craft is a perfect sewing project for kids.