I have a theory for a possible DF of Hannybal:
I think If Hannybal didn't have any sorts of special abilities Oda hasn't mentioned this in the Buggy-Mister 3-dialogue.
Well, the whole Fighting-Scenario remeber me to the "Devil's toilet" from Dragonball.
There was an Enemy called the "Mummy", I could envisage myself that Hannybal has his abylities. The Mummy was able to control his bandages and bond Son-Goku with it. For a Vice-Prison-Leader there were a good and helpfully ability, to catch Prisoners… And this Ability would apply to his Pharao-Design ...
So, I think hannyabals DF is the "Mummy-Mummy-Fruit" or "Bandage-Fruit" :D
It's only a theory, but I could envisage this to myself.
Because I didn't think, that hannyabal is weak, It would be a shame if the Vice Leader loses against two dumbasses like Mister 3 and Buggy :P
Now you can flame me for my theory and link to DB. xD