Porter's chocolates

Porter's chocolate is a possible reward from defeating the Jack-O'-Skelton during the 2015 Hallowe'en event. After consuming, the next three harvested items will be ported to the player's bank. If no items are sent by 2 minutes, it will expire automatically. Also, during those 2 minutes, you may not eat another chocolate regardless of whether you picked up 3 items or not.

Though it may seem incredibly useful, especially for those without the divination levels to make porters, its practicality is rather weak because it is only able to port 3 harvested items per chocolate, while on the other hand the chocolate does stack. The chocolate is best used in combination with porters to save inventory space and keep training for a short while longer.