Looking back at the faded sign and taking a closer look you discover that you misread the sign. Instead of saying forbidden the sign actually said Fat/Fatten. looking at the costumes you notice that they all look thin and lanky. Just to make sure you read the sign right you take a few steps closer to examine it to find that it does indeed say Fat/Fatten. You walk over to and grab the tag of a gorilla costume and it was unrealistic. The tag said that it transformed the wearer into an anthropomorphic gorilla and made them fatter. Looking at other costumes gave similar descriptions, but some had unique quality's.
A rubbery orca costume had on of the most unique descriptions. Instead of making the person fatter it kept making the person fatter until... something, the last bit of the tag has faded and you are unable to make it out.
The scaly dinosaur costume is also special making the wearer fatter every time they hiccup. A generic version of the same dinosaur costume was right next to this one and another special one to the left but you don't care to look at its tag. In bold, red letters the tag had a warning about getting to fat to move and the costume had a tracker inside of it, you assume the other special costumes had similar warnings.
Looking at the werewolf costume its tag describes it as one of the most fattening. This costume made the wearer fatter with each step albeit a very small amount, it still add up after a while. This costume had the same warning as the dinosaur costume so you are assured that all the special costumes have a tracker.
A fox costume had a fun play on the stereotype by making the wearer fatter with each lie they tell.
The boar costume basically said that the more you eat the more you gain.
Wanting to put one on just for shits and grins you go to grab a costume and...