Forming tool???

 From:  Gregarious2 (GREGGARRISS)
3198.1 
Aloha,

Is there a way to "form" a surface using another curve? Sorry, sounds wierd.. Basically I am looking for a way to modify a surface with another one.. Sort of an inverse offset. I am carving a series of 2d intertwined sine waves ( channels ) into a block of wood for someone and they have requested the curves be rounder.. Not quite a sine but something a little more circular.. The sine tool is my friend but is there a way to influence one curve with another? Like to "plump" out a sine curve by moving a circle in close ?

Thanks!!