This is my design for some sunglasses. The lenses are designed around the Oakley Frogskin design. You can just buy some replacement lenses to do this build and they should pop right in. The trick to making this print successful is building on a heated bed @ 60C. From there pull the lens frames off of the bed right after printing and then thermoform to the unique contours of your face. The next version will print the contour, so that there is no need for post processing. Have fun!