Note: The pegs in this design are 5mm in diameter. There is enough give in the Detail material for it to join with the inspiration piece's 4.9mm diameter sockets. Pieces produced in Stainless Steel don't have that flexibility and the resulting 0.1mm difference a bit too tight.
This base design is Creative Commons licensed. The source files can be found here: http://www.thingiverse.com/thing:1005