Dream Sword (Kingdom Hearts) 4 Feet!
The Dream Sword from Kingdom Hearts 1!
https://models.spriters-resource.com/playstation_2/kingdomhearts/asset/288423/
I scaled up the sword to 48 inches (I meant 36 inches for 3 feet, but didn't notice until I started printing) and the cut apart the model into pieces, then added positive and negative cube holes for gluing.
For the more practical 3 Feet version just take all the models and shrink them from 100% to 75%