I haven't watched any movies or TV specials, so if any have appeared, let me know.
Kuso Kuso no Mi- Paramecia.
Do you REALLY want to know what this DF is capable of? Okay, to the Japanese illiterate, it's feces. Happy? You become a feces-man!
Moe Moe no Mi- Paramecia.
Changes the user into an underaged girl, can shift ages from 8-17. Now you have the ability to see the darkside of grown men!
Sai Sai no Mi- Zoan
The user is able to change into a Rhino, full or hybrid. Bullets are ineffectual to the tough skin. Great charging force.
Kaba Kaba no Mi- Zoan
The user has the ability to transform into a Hippopotamus, full or hybrid. Avoid its crushing bite!
Nioi Nioi no Mi- Logia
You can change into a cloud of any scent or odor, even spray out strong (non-toxic) gases with enough concentration. Heck you can even change the smell of your farts to a field of fresh daisies if you wanted...so I guess it has a redeeming quality for the social end of things. Is it worth not swimming for?Well, that's up to you.