Dumping Permit

 is a consumable for the Monorail 2015 Event that doubled rewards for dumping garbage in player neighbors' Springfields. It's available for 90 Donuts and could be used during all three acts of the event. If purchases when act 2 is started, it cost 60 donuts, and only 30 if the act 3 is lauched.

Trivia

 * Doubling rewards from neighbors' places, the player could get a maximum of 1080 Blueprints ,Duct Tape or Bells and Whistles (instead of the usual 540) per day.
 * Over 12 days, the duration of a single Act, it meant an addition of 6480 Currencies. This adds to a total of 19 440 additional event currency that could be obtained with the Permit.