Woot offers ThinOptics Universal Case and Readers Rectangular Reading Glasses, Silver Black Metal Pod with Black Frames, 1.5 Strength for $9.99 (orig. $32.95). Free shipping for Prime Members.

Product Description:
ThinOptics were developed in the silicon valley and are the most advanced eyewear you have ever experienced. Our products include your choice of either a universal pod case, to stick to the back of your mobile phone or any hard flat surface, or a mobile phone case for Apple or Samsung galaxy phones.  Our reading glasses weigh less than a nickel and are only 2 credit cards thick, so you'll barely notice them on your phone or other device. Choose from +1.50, +2.00, and +2.50 strength options.

• ULTIMATE PORTABILITY: Say goodbye to misplaced reading glasses. The world’s thinnest armless readers with our portable keychain is a versatile vision solution that travels anywhere. The compact case attaches to your cell phone or fits in your pocket.
• SUPERIOR COMFORT & UNIVERSAL FIT: Designed in Silicon Valley, our Readers fit a wide range of nose types, for both men and women. Constructed to be feather-light, but extremely durable. They are so lightweight, you will almost forget they are there!
• INNOVATIVE PATENTED DESIGN: Backed by our 9 patents for eye glasses and cases, our design ensures the highest quality eyewear. Our Readers are made of shatterproof, optical-grade polycarbonate. The bridge is a shape-memory metal.
• UNMATCHED QUALITY & DURABILITY: We go the extra mile to ensure that our readers stand the test of time. Our thin lenses are made by one of the most advanced optical lens manufacturers in the world and are rigorously tested for durability and longevity.
• CUTTING-EDGE EYEWEAR: Our Readers are available in magnifications of 1.0, 1.5, 2.0, and 2.5. Our acclaimed & award winning slim eyeglass readers make a wonderful gift for Father's Day, Mother's Day, birthdays, Christmas, or any other special holidays.