how to finish the top on this object

 From:  blade33ru
5728.5 
ok got the blends working...had to one by one but looks nice...one other thing...i notice there is a history button...that woudnt allow me by any chance to change the look afterwards would it?...i ended up doing like 6 blends and after making all the selections it would be kind of a pain to go back and do it all again to tweak the look....im a maya user...used to have the history running