This was a quick fix I cooked up to repair some sunglasses that were great except the nose pad broke. after searching far and wide, these awesome specs were no longer available, and a glasses repair kit had the wrong type of nose pad. 

After a little trial and error the solution was to print a solid box, with the pad attached, and punch a small hole with a pick through the sidewall to allow the tiny screw to seat into its threads. 

I printed this part in TPU, for flexibility and comfort on the nose, with some tiny supports inside the tiny box.

Happy Printing!