SZTodi via Amazon offers the Todi 9-in-1 Phone Camera Lens for $19.99. Coupon code "D5RP9EED" cuts it to $8. With free shipping for Prime members, that's $12 under the lowest price we could find for a 10-piece set elsewhere. It fits all smartphones and features macro, telephoto, wide angle, fisheye, CPL, kaleidoscope, and starburst lenses.