Mwave offers the POV Action Sunglasses Digital Camcorder in Camo, model no. AGC20-4CA, for $74.95 plus $2.99 for shipping. That's the lowest total price we could find by $16. The glasses house a 3.0-megapixel camera and feature a resolution of 736x480, 4GB memory, and microSD card slot.
Groupon cuts 57% to 78% off a selection of sunglasses, as listed below, with prices starting from $14.99 plus $2.99 for shipping. (Orders over $15 qualify for free shipping.) They're at least $23 off and among the best such deals we've seen on sunglasses from Groupon. The deals, with free shipping unless otherwise noted: