Spooky Mask

From Zelda Wiki.org

The Spooky Mask is a mask found in Ocarina of Time from the Happy Mask Shop. Link can use it to 'scare' people. It also has a side-effect of glowing in the dark at night. The scientist at the Lake Hylia Laboratory will tell Link that it was carved from wood taken from a coffin if spoken to whilst the mask is worn.

ReDeads feature an almost identical face to the Spooky Mask, and because of this it is theorized by some that the Spooky Mask may be a burial mask.

The only real use of this item is selling it to Dampé's admiring fan to progress in the mask quest.