Total unclaimed: 2
Hold the button and blow on it to gain +2 to sight-based tests for the scene. The user can deactivate the token at any time with an instant action.
Drawback: The eyeball makes a constant chattering noise for the scene, imposing a -2 penalty to all Stealth checks.
Catch: You cannot release the button from your hand for a day, and it deals one point of bashing damage every half hour.
Lets you read anything, then not understand much for a while.