[Might be a request] Ball Model

Hi all,
I'm making a spell right now which requires me to create a "force field"-like effect, and I'm guessing that I should be using a ball model. It's not so easy for me to create one by my own, since I have zero experience in modelling.

So I just want to know if anyone can help me find a round ball model/effect that could adjust its color with the player color.

Thanks in advance,
dadads

How big do you want the ball to be and do you want it to be just a consistent color, or do have some sort of swirlies?