I have just put fondant on a ball cake and have lots of seams. How do I most easily get rid of them. Rubbing with my hands just isn't cutting it?

You have to ease it on as you apply it--fondant stretches, right, so for a ball you have to stretch it out and back in for it to conform to a round shape so you have to maybe start with the fondant a little thicker but once you finish all the seams have to be pretty much be gone.

You pull and work each fold from the top down and go all the way around --but don't let it make seams-- work quickly--like you know the latitude lines on a globe--work latitude by latitude stretching & pulling around & around & smoothing.

Then you can take a blob of smooth fondant and dip it cornstarch if necessary so it doesn't stick and use that to rub rub rub smooth smooth smooth.

Maybe you could remove it and re-knead it if you want. Or just use some decor to conceal the seams--like grass around the bottom.

Seamless ideas for you.

Thanks for the suggestions. I didn't really go about this the right way and hence the seams but I managed to cover them up using fondant "grouting" as used in Lindy Smith's book. The surface was painted in a mottled manner so it worked to some extent. Not perfect but my friend was happy.

I'll post a picture of the cake (Jupiter) shortly.

Oh cool--for some reason I thought it was a baseball.
Great that your friend was happy!!!