How do I make a curved ellipse for a propeller tip?

Hi all,

I'm relatively new to this program and I'm trying to model a propeller blade which has a constant elliptical shape. However the two corners (so to speak) at the tip of the blade must have a fillet with the blade edges but not all around. How can I keep the elliptical shape of the tip while have the blade edges filleted?

Thanks

T.K

SolidworksSketching