I'm not familiar with the detailed requirements of a skate bowl but here's a shape I quickly made from 2 splines. I created a profile spline in the front view (green) and a spline for the path in the top view (red).
![image.png image.png](https://forums.autodesk.com/t5/image/serverpage/image-id/676826i1665DD3EC7B28FF9/image-size/large?v=v2&px=999)
I then applied a Sweep modifier to the path spline to yield the following.
![image.png image.png](https://forums.autodesk.com/t5/image/serverpage/image-id/676827i031EE27ACE18BEE5/image-size/large?v=v2&px=999)
Some adjusting of the spline vertices is required at this point to get a satisfactory shape.
lee.minardi