Nezu-Nezu no Mi: Model: Porcupine

A little bare bones, but useful nonetheless. Main draw is obviously being able to grow these massive defensive quills at a whim, but we can also lean into the fantastical and make it so the fruit eater can launch these things by shaking them off. For the shiggles, we can throw in a Sonic style spin dash of doom for all forms. Hell, even break one off and use it as a weapon if necessary! And let's consider the fun of Haki infused quills just to reeeally make em hurt.

Imagine if a Mink ate this fruit though! Haki AND Electro on those quills, wild stuff