Another possible technique is to model a sort of "scallop" surface and then use a boolean to cut that material away from the base solid, and then you follow that with a fillet to round off the edges.

That looks something like this - some sort of profile and path curve similar to this:



A surface can then be constructed from those using sweep - select the bottom one first to be the profile curve, then run Construct > Sweep and pick the other one as the rail path. That builds a surface like so:



This surface relates to the main body in this way, note how it is extends all the way through the body so that it will be able to cut it:



Use Transform > Array > Circular to replicate it around into a circular pattern:



Now select the main body and run Construct > Boolean > Difference, and pick those scallop surfaces as the cutting objects. That will slice the main body with those surfaces and result in several pieces, select these pieces:



And then delete those objects, leaving just the big piece behind:



Then use Construct > Fillet to round off those edges:




I hope this gives you the general idea - you can alter the shape quite a bit by adjusting the curves that were used for constructing the scallop, to make the scallop narrower or longer or angle it differently or whatever. Also you may want to slice out another piece from the center core, maybe use a revolve on a profile curve to make a sort of dome to boolean away for that.

But anyway, you can use cutting objects in this fashion to slice away chunks and that then forms the feet out of the remaining areas.

- Michael