The first Devil Fruit I shall talk about is my own, naturally, as it is the one I know best. I shall list it, along with all other Devil Fruits mentioned in these pages, using a template I have created.
Name: Hat-Hat Fruit
Category: Paramecia
Power: Allows the user to use the insides of hats and other headwear as a sort of 'infinite hammerspace'
Usage: I mainly use this Devil Fruit to stow my journal and other valuables, as I am the only one who can access them in this fashion. It also allows me to conceal my pistol, should I need to defend myself.
Strengths: As stated before, this fruit gives me a way to prevent my valuables from being stolen, as well as allowing me to conceal weapons on my person.
Weaknesses: This Devil Fruit is one of the few that I have heard of or witnessed that requires an external object to function; without access to some sort of headwear, I am unable to access the 'hammerspace' of my Devil Fruit.
Notes: This Devil Fruit is what started my whole journey; after accidentally consuming it, I was forced to go into hiding, lest the religious zealots of my home try to 'exercise the demon' that had apparently 'possessed me'.