The Wave Wave fruit. It could allow you to send out energy at an opponent, read minds, and use telapathy (Even on animals…)
Wild Wild fruit. I'm guessing this would be a zoan. It could allow you to change into any animal at will. Hence being able to be a fish in water. Yay, loop holes!
Ew Ew fruit. Allows you to say/do things so gross your opponent faints. :D
Plant Plant fruit. Allows the user to make plants come out of anything, and control plants. Think Robin but with tress and stuff.
Pop Pop fruit. Allows the user to make BUBBLES! :lol:
Stalk Stalk fruit. Allows you to follow an opponent any where, and become the world's best stalker. :ph34r:
I'll come up with more later.