List of Rarest BIONICLE Masks

This is a list of BIONICLE masks considered the rarest. This is based on numerous factors, such as their original status as misprints, or their current availability/prominence on sites such as eBay and Bricklink.

Great Hau Recolors
Several recolors of the Great Hau are considered hard to find.
 * A black, blue and white variant are each available for around US $6 and up on Bricklink.
 * A metallic gold variant is available for $9 and up on Bricklink.
 * A chrome variant is available for around US $20 and up on Bricklink.

Great Kaukau Recolors
Several recolors of Gali Mata's mask are considered rare. Article Under Construction
 * A trans-neon orange variant is available for US $20 and up on Bricklink.
 * A trans-clear variant is available for around US $30 and up on Bricklink.
 * A trans-medium blue variant is available for around US $50 and up on Bricklink.
 * A trans-yellow variant is available for US $60 and up on Bricklink.
 * A trans-light blue variant is available for around US $70 and up on Bricklink.