This light-up collar is great for dogs that are well-behaved enough to go on night walks without a leash—or any dog who wants to be the center of attention at an outdoor night gathering. The trim-to-fit, rechargeable Halo LED light belt has three lighting modes, holds a charge between 4-6 hours, and can be seen from up to 1,500 feet away. The silicon collar is 27-inches long, but can be cut down. It's waterproof and available in either black or blue. Recharge the device via a MicroUSB cable. $40.