lol, how about a hulk hulk fruit? turning the user into the incredible hulk? lol ok but seriously, how about a fruit like that? i'm sure i've no idea what the name of the fruit would be in japanese, but it seems plausible. immense strength and size, near invulnerability to physical damage, that has some pretty cool potential. or maybe a rock rock fruit? that could be a cool logia fruit or even a paramecia one. ability to turn one's body parts into rock (paramecia) or ability to control the ground and rocks (logia).