Here is a Bionicle Chain Necklace i made. I use 37 Hewkii Inika Chain. To add a Kanohi Mask on: 1 - Technic, Axle 2 Notched 1 - Technic Bush 1/2 Smooth 1 - Technic, Axle and Pin Connector Angled #1 (known to only use 2001 to 2002 Kanohi Mask) or 1 - Technic, Axle Connector with Axle Hole (you can use a Rahkshi head for this) Then put what ever mask you want on. Here is the Chain Necklace: http://www.mocpages.com/moc.php/363946