Amazon.com offers the EyeClops Night Vision Infrared Stealth Goggles
. With free shipping
, that's the lowest total price we could find by $3 and a price low outside of a deal on Cyber Monday, although that was reserved for new customers to drugstore.com (since expired). It features infrared-driven night vision technology that allows visibility up to 50 feet even in complete darkness.
Of note, this is one of the items on the Toys "R" Us "Fabulous 15" List, so you know your kids'll want it.