Ok first of all , I dont lnow if the sparay adhesive will work. You will have to try it.
First: Go get clear lensed sunglasses, or you could use lightly tinted ones...
Second: Have some lace. I would prefer black, but if you can't find clear lensed ones, use black lenses with white lace or pink or whatev. The lace should be wider than your glasses. Trace out the shape of the lenses on the lace and cut out.
Third: Well, I would put some spray adhesive on like a q-tip or something and smear it around; or you could put tape around the frames and spray the lenses. Then stick and center the lace on the lenses, and let dry!!! ALL DONE!!! And then people will think your rich when your really broke!!! YAY!!