Daz studio might be based on preexisting props, it still has a set of tools to add your own take on the models, be it fixing clothes that don't fit properly, making a unique hairstyle or adding a crazy bodymod! Let's start with what I call the best way:
1- The easy way
You should be familiar with the "Mesh Smoothing" in the general parameters of a prop: it's the often necessary parameter to make clothes fit without "sinking" into the base model. If it's not included by default, you can add it to any prop with edit/object-or-figure/geometry/add smoothing modifier. The "collision Item" is set by default to the figure the prop is fit on, but t