Carl if check through my uploads I know I posted 1 or 2 pics of frames. One for sure was made with a 3/8" bullnose and the rest of the profile was with several sizes of ball nose bits just like Phil suggested. I copied a pattern I saw at a framing shop that wanted $25/ft for it. I had a homemade horizontal router setup though and it proved very handy for making frames.
Elite Tools in Canada have a picture frame set and Yonnico (also doing business as Precision Bits) does too. Both are decent quality budget priced bits and they might ship to you.
Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.