Frog mask

A frog mask is a mask in the shape of a frog's head which can be bought from Iffie for 500 coins.

It used to only be obtainable through the frogs random event, and then choosing the "Save up for a costume" option of the Random event gift, then proceeding to the Thessalia's Fine Clothes store in Varrock to redeem the points in exchange for the mask or the Prince/Princess outfit.

The mask can be stored in a Costume box in a Player-owned house.

Trivia

 * The chathead of the Frog mask appears vastly different to the overworld model and the inventory icon.

Frog mask