Horseboxcamper Creations › Cogs Necklace Image 1 of 1 Cogs Necklace £18.00 This necklace is made from hemp yarn and is adjustable in length. With 3 cogs to create a fun, steampunk design. Add To Cart Added! This necklace is made from hemp yarn and is adjustable in length. With 3 cogs to create a fun, steampunk design.