Oh Pudding Memo memo no mi, and Viola's giro giro are also great options 
I forgot a lot of interesting fruits, so decide to list* them here so you can click the link and check the ones youd like to pick. (source : picked the lists from wikia)
*listed only canon fruits.

I forgot a lot of interesting fruits, so decide to list* them here so you can click the link and check the ones youd like to pick. (source : picked the lists from wikia)
*listed only canon fruits.

if there is a "Swim Swim" devil fruit that allows the user to swim. Perhaps, with the existence of such fruit, it would reverse the effect of a DF user who becomes a hammer. Instead he/she becomes like a feather.
But to think about it, the fruit itself is a mystery. So is its origin. We do know how the fruit works, how it tastes like, the shape and size, and its effects. Doflamingo even uses it for his business venture by creating artificial ones. (It's quite a brilliant idea, actually)
