making of the shoe
 
a simple tutorial on box-modeling - page 22
   
   
 
here's a rivet...
 
 
 

then, after copying them, let's align one by one using its center to a particular vertex of the shoe and let's move it using local axis coordinates.
 
   
 

After using an edit mesh modifier ,i've selected those two patches using IDs. Then i applied another FFD box modifier to obtain a moved surface by shifting vertices.
 
   
 
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