The Knit Pro range is both lovely to look at and lovely to use. The Symphonie range shown is made from coloured compressed Birch Wood and come in conventional and interchangeable types of knitting pins. The cables for the interchangeables can be used to store knitting on and can also be used with the inter-changeable afghan crochet hooks. The inter-changeable tips range from 3mm up to 15mm, and the cables range from 40cm - 150cm, and if you need longer there are joining bars to allow you to have them as long as you want or need.
Not the cheapest pins by a long way but practical and a good way to get started is by the Knit Pro Symphonie Starter set then add tips or cables as you go.
There also aluminium and acrylic tips also available to buy.