The Ice mask (happy) is a vanity item made available on 14 December 2011. To obtain an ice mask, players must purchase a 6 months subscription package. The next time a player logs in after the payment has been made, the mask will be deposited into their bank, or sent to Diango if they don't have enough bank space.
Similar to the Sock mask, it could be manipulated into two different forms representing different emotions. The default expression on the mask upon retrieval is random. The happy side of the mask can be rotated to transform it to the other other expression.
This is the fourth item that Jagex has released into RuneScape which is only available through the purchase of membership in various forms for a limited time, the first being the Ornate katana, the second being Green skin, the third being the Turkey hat.
This is also the fifth special offers item, the first three listed above, the fourth being the Chrome goggles.